Gmt module: Fix bad assignment to uninitialised pointer in previous commit.

dotests

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+MAKEMAP="${1:-/tmp/save/build/src/makemap}"
+TPATH=tests
+
+SCRW=`tput cols`
+
+set -o pipefail
+
+for n in "$TPATH"/*; do
+ status=`cat $n|grep "# Status: "|sed "s/# Status: //"`
+ desc=`cat $n|grep "# Description: "|sed "s/# Description: //"`
+ hash=`cat $n|grep "# Output hash: "|sed "s/.*: //"`
+ while [ ${#desc} -lt $((SCRW-5)) ]; do desc+=" "; done
+ echo -n "$desc"
+ t=`mktemp`
+ grep -v -E "# .*: " "$n">$t
+ thash=`$MAKEMAP "$t" 2>&1 | sha256sum|sed "s/ .*//"`
+ ret=$?
+ if [ "$status" == "ok" ]; then
+  if [ "$hash" == "$thash" -a "$ret" == "0" ]; then
+   echo -e "\033[32mOk \033[0m"
+  else
+   echo -e "\033[31mFail\033[0m"
+  fi
+ else
+  if [ "$hash" == "$thash" -a "$ret" != "0" ]; then
+   echo -e "\033[32mOk \033[0m"
+  else
+   echo -e "\033[31mFail\033[0m"
+  fi
+ fi
+ rm $t
+done

include/builtin.h

@@ -1,3 +1,5 @@
+#ifndef BUILTIN_H
+#define BUILTIN_H
 #include <cmath>
 #include "object.h"
 
@@ -114,3 +116,4 @@ const ObjectBase* Arifm1(const ObjectList* input)
 
  return new ObjectError("Arifmetic unary operator","unknown error"); // Impossible case
 }
+#endif

maketest

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+name="$1"
+desc="$2"
+TLOC="${3:-/tmp/save/test}"
+MAKEMAP="${4:-/tmp/save/build/src/makemap}"
+
+if [ -f tests/"$name" ]; then
+ echo "Test $name already exist."
+ exit 1
+fi
+
+if [ ! -f "$TLOC" ]; then
+ echo "Configuration file $TLOC not found."
+ exit 2
+fi
+
+if [ ! -x "$MAKEMAP" ]; then
+ echo "Can't exec file $MAKEMAP."
+ exit 3
+fi
+
+echo "# Description: $desc" >tests/$name
+if "$MAKEMAP" "$TLOC" &>/dev/null; then
+ hash=`"$MAKEMAP" "$TLOC" 2>/dev/null|sha256sum|sed "s/ .*//"`
+ status=ok
+else
+ hash=`"$MAKEMAP" "$TLOC" 2>&1|sha256sum|sed "s/ .*//"`
+ status=fail
+fi
+echo "# Status: $status" >>tests/$name
+echo "# Output hash: $hash" >>tests/$name
+cat "$TLOC" >>tests/$name
+ 

modules/gmt/modgmt_colornames.h

@@ -13,38 +13,38 @@ public:
 };
 
 inline unsigned int
-ColorHash::colornamehash ( const char *str,  unsigned int len)
+ColorHash::colornamehash (const char *str, unsigned int len)
 {
   static const unsigned short asso_values[] =
     {
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,  800,   25,
-        20,    5,    0,  845,  785,  780,  640,  620, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084,   80,    0,  686,    5,    0,
-       260,    0,   85,  770,   20,  950,  210,   95,  160,  195,
-       995,  335,    0,    0,  135,  425,   55,  863, 4084,   60,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084,   80,    0,  686,
-         5,    0,  260,    0,   85,  770,   20,  950,  210,   95,
-       160,  195,  995,  335,    0,    0,  135,  425,   55,  863,
-      4084,   60, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084, 4084,
-      4084, 4084, 4084, 4084, 4084, 4084
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,  666,   27,
+        26,   23,   22,  789,  588,  587,  501,  436, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728,   61,   96,  222,   98,   22,
+       117,   22,  561,  559,   22,  708,  179,  301,   42,  101,
+       242,   46,   23,   22,  116,  171,  821,  809, 2728,  169,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728,   61,   96,  222,
+        98,   22,  117,   22,  561,  559,   22,  708,  179,  301,
+        42,  101,  242,   46,   23,   22,  116,  171,  821,  809,
+      2728,  169, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728, 2728,
+      2728, 2728, 2728, 2728, 2728, 2728
     };
-   int hval = len;
+  int hval = len;
 
   switch (hval)
     {
@@ -81,4 +81,4 @@ ColorHash::colornamehash ( const char *str,  unsigned int len)
   return hval + asso_values[(unsigned char)str[len - 1]];
 }
 
-#endif
+#endif

modules/gmt/modgmt_func.cpp

@@ -24,126 +24,111 @@ const ObjectBase* GMT_Footer(const ObjectList* input)
 const ObjectBase* GMT_ColorGray(const ObjectList* input)
 {
  struct gmt_color c;
- bool suc=true;
- Base2RGB g(input,0);
- Base2Transp t(input,1);
+ RPosPar<Base2RGB> g("gray");
+ OPosPar<Base2TransD> t("transparency",0.0);
+
+ ParsePositionalParameters params(input,g,t);
+ if(!params) return new ObjectError("ColorGray",params.Error());
 
  c.model=gmt_color::GRAY;
- c.gray=g(&suc);
- c.transparency=t(&suc);
+ c.gray=g; c.transparency=t;
 
- if(suc) return new ObjectGMTColor(c);
- else return 0;
+ return new ObjectGMTColor(c);
 }
 
 const ObjectBase* GMT_ColorRGB(const ObjectList* input)
 {
  struct gmt_color c;
- bool suc=true;
- Base2RGB r(input,0),g(input,1),b(input,2);
- Base2Transp t(input,3);
+
+ RPosPar<Base2RGB> r("red"),g("green"),b("blue");
+ OPosPar<Base2TransD> t("transparency",0.0);
+
+ ParsePositionalParameters params(input,r,g,b,t);
+ if(!params) return new ObjectError("ColorRGB",params.Error());
 
  c.model=gmt_color::RGB;
- c.r=r(&suc);
- c.g=g(&suc);
- c.b=b(&suc);
- c.transparency=t(&suc);
+ c.r=r; c.g=g; c.b=b; c.transparency=t;
 
- if(suc) return new ObjectGMTColor(c);
- else return 0;
+ return new ObjectGMTColor(c);
 }
 
 const ObjectBase* GMT_ColorHSV(const ObjectList* input)
 {
  struct gmt_color c;
- bool suc=true;
- Base2Hue h(input,0);
- Base2SV s(input,1),v(input,2);
- Base2Transp t(input,3);
+
+ RPosPar<Base2Hue> h("hue");
+ RPosPar<Base2SV> s("saturation"), v("value");
+ OPosPar<Base2TransD> t("transparency",0.0);
+
+ ParsePositionalParameters params(input,h,s,v,t);
+ if(!params) return new ObjectError("ColorHSV",params.Error());
 
  c.model=gmt_color::HSV;
- c.hue=h(&suc);
- c.saturation=s(&suc);
- c.value=v(&suc);
- c.transparency=t(&suc);
+ c.hue=h; c.saturation=s; c.value=v; c.transparency=t;
 
- if(suc) return new ObjectGMTColor(c);
- else return 0;
+ return new ObjectGMTColor(c);
 }
 
 const ObjectBase* GMT_ColorCMYK(const ObjectList* input)
 {
- struct gmt_color c;
- bool suc=true;
- Base2CMYK cyan(input,0),m(input,1),y(input,2),k(input,3);
- Base2Transp t(input,4);
-
- c.model=gmt_color::CMYK;
- c.cyan=cyan(&suc);
- c.magenta=m(&suc);
- c.yellow=y(&suc);
- c.black=k(&suc);
- c.transparency=t(&suc);
-
- if(suc) return new ObjectGMTColor(c);
- else return 0;
+ struct gmt_color C;
+
+ RPosPar<Base2CMYK> c("cyan"),m("magenta"),y("yellow"),k("black");
+ OPosPar<Base2TransD> t("transparency",0.0);
+
+ ParsePositionalParameters params(input,c,m,y,k,t);
+ if(!params) return new ObjectError("ColorCMYK",params.Error());
+
+ C.model=gmt_color::CMYK;
+ C.cyan=c; C.magenta=m; C.yellow=y; C.black=k; C.transparency=t;
+
+ return new ObjectGMTColor(C);
 }
 
 // Shifting layer
 /*
 Input:
 1) Three arguments, first is Layer, second and third are double. Interprets as new absolute position in cm.
-2) Pairs list. Names are l (layer), x, y, xrel (xr), yrel (yr). Pair with name l may be absent, in this case search in list and using as layer object with ObjectGMTLayer type. x and y are absolute positions in cm, xrel and yrel are shift from current position. x (y) and xrel (yrel) are mutually exlusive, but x (y) and yrel (xrel) can be used simultaneously. If position for some axis is absent, then this position is unchanged.
+2) Pairs list. Names are l (layer), x, y, relx (rx), rely (ry). Pair with name l may be absent, in this case search in list and using as layer object with ObjectGMTLayer type. x and y are absolute positions in cm, relx and rely are shift from current position. x (y) and relx (rely) are mutually exlusive, but x (y) and rely (relx) can be used simultaneously. If position for some axis is absent, then this position is unchanged.
 */
 const ObjectBase* GMT_LayerShift(const ObjectList* input)
 {
- auto size=input->Size();
  struct gmt_layer layer;
+ std::string err;
 
  // Case 1
- if(3==size)
  {
-  Base2Layer l(input,0);
-  Base2Double x(input,1), y(input,2);
-  bool suc=true;
-  layer=l(&suc);
-  if(!suc) goto case2;
-  layer.shiftx=x(&suc);
-  layer.shifty=y(&suc);
-  if(!suc) goto case2;
+  RPosPar<Base2Layer> l("layer");
+  OPosPar<Base2DoubleD> x("x",0.0), y("y",0.0);
+
+  {ParsePositionalParameters params(input,l,x,y); if(!params) goto case2;} // Try case 2, if case 1 failed.
+  layer=l; layer.shiftx=x; layer.shifty=y;
   return new ObjectGMTLayer(layer);
  }
 
  case2:
-
- // Search layer for shifting
  {
-  SearchParameter<struct gmt_layer> original(input,"layer","l");
-  bool suc=true;
-  layer=original(&suc);
-  if(!suc) goto fail; // Conversion failed or too many arguments
- }
- // Do shift
- {
-  BaseM2Double xr(input,"xrel","xr"), yr(input,"yrel","yr");
-  Base2Double x(input,"x"), y(input,"y");
-  bool suc=true;
+  RNPar<Base2Layer> l("layer");
+  ONPar<Base2Double> x("x"),y("y"),rx("r[el]x"),ry("r[el]y");
+
+  {ParseNamedParameters params(input,l,x,y); if(!params) {err=params.Error(); goto fail;}} // Parsing error
+
   // Check duplicate parameters
-  if( ( x.Exist() && xr.Exist() ) || ( y.Exist() && yr.Exist() ) ) goto fail;
-  if(x.Exist()) layer.shiftx=x(&suc);
-  if(y.Exist()) layer.shifty=y(&suc);
-  if(xr.Exist()) layer.shiftx+=x(&suc);
-  if(yr.Exist()) layer.shifty+=y(&suc);
-  if(!suc) goto fail;
+  if(x.Exist() && rx.Exist()) {err="Only one of "+x.Name()+" or "+rx.Name()+" can be specified."; goto fail;}
+  if(y.Exist() && ry.Exist()) {err="Only one of "+y.Name()+" or "+ry.Name()+" can be specified."; goto fail;}
+  // Do shift
+  if( x.Exist()) layer.shiftx=x;
+  if( y.Exist()) layer.shifty=y;
+  if(rx.Exist()) layer.shiftx+=rx;
+  if(ry.Exist()) layer.shifty+=ry;
  }
 
  return new ObjectGMTLayer(layer);
 
  fail:
- return 0;
+ return new ObjectError("LayerShift",err);
 }
 
-
 // Draw frame with tics
 /*
 Input: pairs list.
@@ -161,169 +146,146 @@ framepen - pen for drawing frame. Default is 0.35,black.
 ticklen - lenght of tick-marks in cm. Default is 0.18.
 tickpen - pen for drawing ticks. Default is 0.3,black.
 trans or transparency - transparency level, double from 0 to 100. Default is 0 (opaque).
-transpmodel - transparency model, string. Choose from Color, ColorBurn, ColorDodge, Darken, Difference, Exclusion, HardLight, Hue, Lighten, Luminosity, Multiply, Normal, Overlay, Saturation, SoftLight, and Screen. Default is Normal.
-x, xr or xrel - shift layer on x cm in horisontal direction. Default is 0.
-y, yr or yrel - shift layer on y cm in vertical direction. Default is 0.
+model - transparency model, string. Choose from Color, ColorBurn, ColorDodge, Darken, Difference, Exclusion, HardLight, Hue, Lighten, Luminosity, Multiply, Normal, Overlay, Saturation, SoftLight, and Screen. Default is Normal.
+rx or relx - shift layer on x cm in horisontal direction. Default is 0.
+ry or rely - shift layer on y cm in vertical direction. Default is 0.
 */
+template<class O>
+using SConvertor=Convert2Struct<std::string, O>;
+template<class O>
+using DConvertor=Convert2Struct<double, O>;
+
 const ObjectBase* GMT_DrawFrame(const ObjectList* input)
 {
- std::string opts="-P -O -K ";
- bool suc=true;
- struct gmt_layer layer;
- // Defaults
- std::string defxtics="down", defytics="left", defint="auto", defdomain="pos", deftranspmodel="Normal";
- bool defmark=false;
- gmt_font deffont; deffont.Convert("12,Times-Roman,black");
- double defoffset=0.18, defframewidth=0.1, defticklen=0.18;
- gmt_pen defframepen, deftickpen; defframepen.Convert("0.35,black"); deftickpen.Convert("0.3,black");
-
- { // Get projection
-  BaseMT2Projection proj(input,"proj","projection");
-
-  layer.proj=proj(&suc);
-  if(!suc) goto fail;
-  opts+=layer.proj.Value()+" ";
- }
-
- { // Get xint and yint
-  BaseMD2String xint(input,defint,"xint"), yint(input,defint,"yint");
-  double dx,dy;
-  std::string str;
+ struct XYIntVal // Representing intervals for tics intervals
+ {
+  bool isauto; double val;
+  XYIntVal():isauto(true),val(0.0) {} // Default is auto
+ };
 
-  str=xint(&suc);
-  if(suc && "auto"==str) dx=AutoStep(layer.proj.region.xb,layer.proj.region.xe);
-  else // No auto, get numeric value
-  {
-   Base2Double xint(input,"xint");
-   suc=true;
-   dx=xint(&suc);
-   if(!suc) goto fail; // Parameter exists, but conversion failed
-  }
+ class Base2TInt // Custom convertor class for xy tics intervals
+ {
+  public:
+  using ValueType=struct XYIntVal;
 
-  str=yint(&suc);
-  if(suc && "auto"==str) dy=AutoStep(layer.proj.region.yb,layer.proj.region.ye);
-  else // No auto, get numeric value
+  ValueType Convert(const ObjectBase* ob, bool* res, std::string& err)
   {
-   Base2Double yint(input,"yint");
-   suc=true;
-   dy=yint(&suc);
-   if(!suc) goto fail; // Parameter exists, but conversion failed
+   ValueType ret;
+   ret.isauto=false;
+
+   OBTypeM<SConvertor,ObjectString> sp(ob);
+   OBTypeM<DConvertor,ObjectReal,ObjectInt,ObjectString> dp(ob);
+   // Check string "auto"
+   if(sp.Error()==OBTypeErr::OK)
+   {
+    std::string s=sp(res,std::ref(err));
+    if(!res) {err="Unknown error"; goto fail;} // Impossible case
+    tolower(s);
+    if("auto"==s) {ret.isauto=true; return ret;}
+   }
+   // Check double value
+   switch(dp.Error())
+   {
+    case(OBTypeErr::OK):
+    {
+     ret.val=dp(res,std::ref(err));
+     if(ret.val<=0.0) {err="Tics interval must be greater the zero"; break;}
+     return ret;
+    };
+    case(OBTypeErr::NULLPTR): {err="Can't convert zero ObjectBase pointer to something meaningfull"; break;}
+    case(OBTypeErr::TYPEMISMATCH): {err="Can't convert "+ob->Type()+" to double: type mismatch"; break;}
+   }
+   fail:
+   *res=false;
+   return ret;
   }
-  opts+="-Bx"+ToString(dx)+" -By"+ToString(dy)+" ";
- }
+ };
 
- { // Get xtics and ytics
-  BaseMD2String x(input,defxtics,"xtics"), y(input,defytics,"ytics");
-  std::string xtics,ytics;
-  std::string xaxis,yaxis;
-
-  xtics=x(&suc);
-  if(!suc) goto fail; // Conversion failed
-  if("none"==xtics) xaxis="sn";
-  if("down"==xtics) xaxis="Sn";
-  if("up"==xtics) xaxis="sN";
-  if("both"==xtics) xaxis="SN";
+ std::string err,fakerr;
+ std::string opts="-P -O -K ";
 
-  ytics=y(&suc);
-  if(!suc) goto fail; // Conversion failed
-  if("none"==ytics) yaxis="we";
-  if("left"==ytics) yaxis="We";
-  if("right"==ytics) yaxis="wE";
-  if("both"==ytics) yaxis="WE";
+ struct gmt_layer layer;
 
-  if(xaxis.empty() || yaxis.empty()) goto fail; // Unknown value of xtics and/or ytics
+ struct gmt_font deffont;
+ struct gmt_pen defframepen,deftickpen;
+ deffont.Convert("12,Times-Roman,black",fakerr);
+ defframepen.Convert("0.35,black",fakerr);
+ deftickpen.Convert("0.3,black",fakerr);
+
+ RNFPar<Base2Proj,ObjectGMTProjection> proj("projection");
+ ONPar<Base2TInt> xint("x[ ]interval"), yint("y[ ]interval");
+ ONPar<Base2StringD> xtics("x[ ]tics[ ]position","down"), ytics("y[ ]t[ics[ ]position","left");
+ ONPar<Base2StringD> domain("domain","pos");
+ ONPar<Base2BoolD> mark("mark",false);
+ ONPar<Base2FontD> font("font",deffont);
+ ONPar<Base2DoubleD> offset("offset",0.18);
+ ONPar<Base2NonNegD> framewidth("f[rame][ ]width",0.1);
+ ONPar<Base2PenD> framepen("f[rame][ ]pen",defframepen), tickpen("t[icks][ ]pen",deftickpen);
+ ONPar<Base2DoubleD> ticklen("t[icks][ ]length",0.18);
+ ONPar<Base2TransD> transp("transparency",0.0);
+ ONPar<Base2StringD> transpmodel("model","Normal");
+ ONPar<Base2DoubleD> rx("r[el]x",0.0),ry("r[el]y",0.0);
+
+ ParseNamedParameters params(input,proj,xint,yint,xtics,ytics,domain,mark,font,offset,framewidth,framepen,tickpen,ticklen,transp,transpmodel,rx,ry); if(!params) {err=params.Error(); goto fail;} // Error parsing parameters
+
+ layer.proj=proj; // Get projection
+ opts+=layer.proj.Value()+" ";
+
+ { // Get tics intervals
+  XYIntVal dx=xint,dy=yint;
+  opts+="-Bx"+ToString(dx.isauto?AutoStep(layer.proj.region.xb,layer.proj.region.xe):dx.val)+" -By"+ToString(dy.isauto?AutoStep(layer.proj.region.yb,layer.proj.region.ye):dy.val)+" ";
+ }
 
+ { // Get xtics and ytics positions
+  std::string xt=xtics, yt=ytics;
+  std::string xaxis, yaxis;
+  TemplateComparator none("none"), both("both");
+  TemplateComparator up("up"), down("down");
+  TemplateComparator left("left"), right("right");
+  tolower(xt); tolower(yt);
+
+  if(none.Compare(xt)) xaxis="sn";
+  if(down.Compare(xt)) xaxis="Sn";
+  if(  up.Compare(xt)) xaxis="sN";
+  if(both.Compare(xt)) xaxis="SN";
+
+  if( none.Compare(yt)) yaxis="we";
+  if( left.Compare(yt)) yaxis="We";
+  if(right.Compare(yt)) yaxis="wE";
+  if( both.Compare(yt)) yaxis="WE";
+
+  if(xaxis.empty()) {err="Incorrect xtics position "+xtics.Value(); goto fail;} // Unknown value of xtics
+  if(yaxis.empty()) {err="Incorrect xtics position "+ytics.Value(); goto fail;} // Unknown value of ytics
   opts+="-B"+xaxis+yaxis+" ";
  }
 
  { // Get domain and mark
-  BaseMD2String d(input,defdomain,"domain");
-  BaseMD2Bool m(input,defmark,"mark");
+  std::string dom=domain;
   std::string format;
+  TemplateComparator p("positive"),n("negative"),c("centered");
+  tolower(dom);
 
-  std::string domain=d(&suc);
-  if(!suc) goto fail; // Conversion failed
-  if("pos"==domain) format="+ddd:mm:ss";
-  if("neg"==domain) format="-ddd:mm:ss";
-  if("center"==domain) format="ddd:mm:ss";
-  if(format.empty()) goto fail; // Unknown domain
-
-  if(m(&suc)) format+="F";
-  if(!suc) goto fail; // Conversion failed
+  if(p.Compare(dom)) format="+ddd:mm:ss";
+  if(n.Compare(dom)) format="-ddd:mm:ss";
+  if(c.Compare(dom)) format="ddd:mm:ss";
+  if(format.empty()) {err="Incorrect domain value "+domain.Value(); goto fail;} // Unknown domain
 
+  if(mark) format+="F";
   opts+="--FORMAT_GEO_MAP="+format+" ";
  }
 
- { // Get font
-  BaseMD2Font f(input,deffont,"font");
-  gmt_font font;
-  font=f(&suc);
-  if(!suc) goto fail; // Conversion failed
-  opts+="--FONT_ANNOT_PRIMARY="+font.Value()+" ";
- }
-
- { // Get offset
-  BaseMD2Double o(input,defoffset,"offset");
-  double offset;
-  offset=o(&suc);
-  if(!suc) goto fail; // Conversion failed
-  opts+="--MAP_ANNOT_OFFSET_PRIMARY="+ToString(offset)+"c ";
- }
-
- { // Get framewidth
-  SearchParameterWDef<double,false,PMin<0> > f(input,defframewidth,"framewidth");
-  double framewidth;
-  framewidth=f(&suc);
-  if(!suc) goto fail; // Conversion failed
-  opts+="--MAP_FRAME_WIDTH="+ToString(framewidth)+"c ";
- }
-
- { // Get framepen
-  BaseMD2Pen p(input,defframepen,"framepen");
-  gmt_pen framepen;
-  framepen=p(&suc);
-  if(!suc) goto fail; // Conversion failed
-  opts+="--MAP_FRAME_PEN="+framepen.Value()+" ";
- }
-
- { // Get ticklen
-  BaseMD2Double t(input,defticklen,"ticklen","ticklength");
-  double ticklen;
-  ticklen=t(&suc);
-  if(!suc) goto fail; // Conversion failed
-  opts+="--MAP_TICK_LENGTH_PRIMARY="+ToString(ticklen)+"c ";
- }
-
- { // Get tickpen
-  BaseMD2Pen t(input,deftickpen,"tickpen");
-  gmt_pen tickpen;
-  tickpen=t(&suc);
-  if(!suc) goto fail; // Conversion failed
-  opts+="--MAP_TICK_PEN_PRIMARY="+tickpen.Value()+" ";
- }
-
- { // Get transparency
-  Base2Transp t(input,"trans","transp","transparency");
-  double transp;
-  transp=t(&suc);
-  if(!suc) goto fail; // Conversion failed
-  if(transp!=0) opts+="-t"+ToString(transp)+" ";
- }
+ opts+="--FONT_ANNOT_PRIMARY="+font.Value().Value()+" "; // Get font
+ opts+="--MAP_ANNOT_OFFSET_PRIMARY="+ToString(offset.Value())+"c "; // Get offset
+ opts+="--MAP_FRAME_WIDTH="+ToString(framewidth.Value())+"c "; // Get framewidth
+ opts+="--MAP_FRAME_PEN="+framepen.Value().Value()+" "; // Get framepen
+ opts+="--MAP_TICK_LENGTH_PRIMARY="+ToString(ticklen.Value())+"c "; // Get ticklen
+ opts+="--MAP_TICK_PEN_PRIMARY="+tickpen.Value().Value()+" "; // Get tickpen
+ if(transp!=0) opts+="-t"+ToString(transp.Value())+" "; // Get transparency
+ opts+="--PS_TRANSPARENCY="+transpmodel.Value()+" "; // Get transparency model
 
- { // Get transpmodel
-  BaseMD2String tm(input,deftranspmodel,"transpmodel","transparencymodel");
-  std::string transpmodel;
-  transpmodel=tm(&suc);
-  if(!suc) goto fail; // Conversion failed
-  opts+="--PS_TRANSPARENCY="+transpmodel+" ";
- }
-
- { // Get x, y
-  BaseMD2Double x(input,0.0,"x","xr","xrel"), y(input,0.0,"y","yr","yrel");
-  layer.shiftx=x(&suc);
-  layer.shifty=y(&suc);
-  if(!suc) goto fail; // Conversion failed
- }
+ // Get shift
+ layer.shiftx=rx;
+ layer.shifty=ry;
 
  { // Calling psbasemap
   void* gmtapi;
@@ -342,5 +304,5 @@ const ObjectBase* GMT_DrawFrame(const ObjectList* input)
  return new ObjectGMTLayer(layer);
 
  fail:
- return 0;
+ return new ObjectError("DrawFrame",err);
 }

modules/gmt/modgmt_gsfuncs.cpp

@@ -82,6 +82,7 @@ static int GhostRun(const std::string& opts, struct gs_runtime* r, std::string*
 {
  struct gsworkthreadpars wp;
  int* pret;
+ int ret=0;
 
  wp.r=r;
  wp.input_callback=input;
@@ -96,7 +97,7 @@ static int GhostRun(const std::string& opts, struct gs_runtime* r, std::string*
   ssize_t br;
   char buffer[4096];
 
-  pipe(pipefd);
+  if(0!=pipe(pipefd)) {ret=-1; goto end;}
   wp.fd=pipefd[1];
 
   out->erase();
@@ -112,6 +113,8 @@ static int GhostRun(const std::string& opts, struct gs_runtime* r, std::string*
  }
  else pret=reinterpret_cast<int*>(gsworkthread(&wp));
 
+ end:
+ if(0!=ret) return ret;
  return *pret;
 }
 

modules/gmt/modgmt_internals.cpp

@@ -44,8 +44,9 @@ int callgmtmodule(void *api, const char *module, struct GMT_OPTION *opts, std::s
  pthread_t wthr;
  struct gmtworkthreadpars p;
  int *pret;
+ int ret=0;
 
- pipe(pipefd);
+ if(0!=pipe(pipefd)) {ret=-1; goto end;}
  p.api=api;
  p.module=module;
  p.opts=opts;
@@ -59,6 +60,8 @@ int callgmtmodule(void *api, const char *module, struct GMT_OPTION *opts, std::s
  res->shrink_to_fit();
  pthread_join(wthr,reinterpret_cast<void**>(&pret));
 
+ end:
+ if(0!=ret) return ret;
  return *pret;
 }
 // Overloaded variant with opts as std::string

modules/gmt/modgmt_map.cpp

@@ -61,13 +61,9 @@ Resulted shift is added to own shift of layer (setted by function LayerShift).
 */
 const ObjectBase* GMT_Map(const ObjectList* input)
 {
- const ObjectList* list=input;
- auto size=list->Size();
- if(0==size) return 0;
- decltype(size) pos=0;
+ std::string err;
  std::string title;
- std::stack<std::pair<const ObjectList*,decltype(pos)> > lstack;
- bool first=true;
+
  double xg,yg,x,y;
  bool xislocal=false, yislocal=false;
  std::list<std::shared_ptr<std::string> > data;
@@ -78,45 +74,29 @@ const ObjectBase* GMT_Map(const ObjectList* input)
  // See http://bugs.ghostscript.com/show_bug.cgi?id=202735
  data.emplace_back(new std::string("4000 4000 translate"));
  data.emplace_back(new std::string(header));
- while(pos<size)
+ for(auto i=input->begin(); i!=input->end(); ++i)
  {
-  // Check if next argument is list
-  {
-   OBType<ObjectList> l(list->At(pos));
-   // Descending
-   if(l)
-   {
-    if(0==l->Size()) goto next;
-    lstack.push(std::make_pair(list,pos));
-    list=l;
-    pos=0;
-    size=l->Size();
-    continue;
-   }
-  }
-
   // Check if first argument is string
-  if(first)
+  if(input->begin()==i)
   {
-   first=false;
-   OBType<ObjectString> s(list->At(pos));
+   OBType<ObjectString> s(*i);
    if(s)
    {
     title=s->Value();
-    goto next;
+    continue;
    }
   }
 
   // Check if argument is pair
   {
-   OBType<ObjectPair> p(list->At(pos));
+   OBType<ObjectPair> p(*i);
    if(p)
    {
     std::string name=p->Name();
     tolower(name);
-    Base2Double d(p->Value());
+    Base2Double d;
     bool suc=true;
-    double val=d(&suc);
+    double val=d.Convert(p->Value(),&suc,err);
     if(!suc) goto fail; // Conversion failed
     suc=false;
     if("x"==name) {suc=true; xislocal=true; x=val;}
@@ -127,14 +107,14 @@ const ObjectBase* GMT_Map(const ObjectList* input)
     if("yg"==name) {suc=true; yg=val;}
     if("xgr"==name) {suc=true; xg+=val;}
     if("ygr"==name) {suc=true; yg+=val;}
-    if(!suc) goto fail; // Unknown name
-    goto next;
+    if(!suc) {err="Unknown parameter name: "+p->Name(); goto fail;} // Unknown name
+    continue;
    }
   }
 
   // Check if argument is layer
   {
-   OBType<ObjectGMTLayer> l(list->At(pos));
+   OBType<ObjectGMTLayer> l(*i);
    if(l)
    {
     struct gmt_layer layer=l->Data();
@@ -148,22 +128,11 @@ const ObjectBase* GMT_Map(const ObjectList* input)
      data.emplace_back(new std::string(layer.EndShift()));
     }
     else data.emplace_back(layer.data);
-    goto next;
+    continue;
    }
   }
-
+  err="Unknown argument type: "+i->Type();
   goto fail; // Unknown type of argument
-  next:
-  pos++;
-  // Ascending
-  if(pos==size && !lstack.empty())
-  {
-   list=lstack.top().first;
-   pos=lstack.top().second;
-   lstack.pop();
-   size=list->Size();
-   goto next;
-  }
  }
  data.emplace_back(new std::string(footer));
 
@@ -175,7 +144,7 @@ const ObjectBase* GMT_Map(const ObjectList* input)
   int ret;
 
   ret=GhostRun("-sDEVICE=bbox",gs_bbox_callback,&in,0,&bboxes,0); // Bounding box is writed on stderr
-  if(0!=ret) goto fail; // Something wrong
+  if(0!=ret) {err="Can't determine BoundingBox"; goto fail;} // Something wrong
 
   std::smatch m;
   std::smatch::const_iterator ci;
@@ -183,7 +152,7 @@ const ObjectBase* GMT_Map(const ObjectList* input)
   bool ok=true;
 
   std::regex_search(bboxes,m,r);
-  if(5!=m.size()) goto fail; // This is strange and scary
+  if(5!=m.size()) {err="Something go wrong, this is strange and scary"; goto fail; }// This is strange and scary
   ci=m.cbegin();
   ci++; // Skip full match
 
@@ -191,7 +160,7 @@ const ObjectBase* GMT_Map(const ObjectList* input)
   ok=ok && str2int(*ci++,&bbly);
   ok=ok && str2int(*ci++,&bbrx);
   ok=ok && str2int(*ci++,&bbry);
-  if(!ok) goto fail; // Unexpected!
+  if(!ok) {err="Unexpected error!"; goto fail;} // Unexpected!
   // FIXME: Workaround ghostscript bug 202735
   // We add 5 points to each margin because ghostscript does'nt count linewidths when calculate bounding box
   bblx-=4005;
@@ -224,7 +193,7 @@ const ObjectBase* GMT_Map(const ObjectList* input)
  }
 
  fail:
- return 0;
+ return new ObjectError("Map",err);
 }
 
 // Creating pdf from eps
@@ -235,39 +204,24 @@ Optionally, resolution can be specified by pair with name resolution, res or r a
 */
 const ObjectBase* GMT_Convert2PDF(const ObjectList* input)
 {
- if(!gs_abilities.havepdf) return 0; // No pdf support
- double r;
- bool suc=true;
- const ObjectGMTMap* map=0;
-
- {
-  SearchParameterWDefO<double,DoubleDefaultVal<720>,false,PMin<1> > res(input,"r","res","resolution");
-  r=res(&suc);
-  if(!suc) goto fail; // Error
- }
+ std::string err;
+ RNFPar<SearchGMTMap,ObjectGMTMap> map("map");
+ ONPar<Base2PosD> r("resolution",720);
+ ParseNamedParameters params(input,map,r);
+ const ObjectGMTMap* m=map;
 
- {
-  for(ObjectList::IndexType i=0;i<input->Size();i++)
-  {
-   OBType<ObjectGMTMap> m(input->At(i));
-   if(m)
-   {
-    if(0!=map) goto fail; // Duplicate
-    map=m;
-   }
-  }
-  if(0==map) goto fail; // Map not found
- }
+ if(!gs_abilities.havepdf) {err="No PDF support in Ghostscript"; goto fail;} // No pdf support
+ if(!params) {err=params.Error(); goto fail;} // Parsing error
 
  {
   std::string* out=new std::string;
-  int ret=eps2pdf(*(map->pValue()),out,r);
-  if(0!=ret) { delete out; goto fail; } // Something wrong
-  return new ObjectGMTMapPDF(out,map->Bblx(),map->Bbly(),map->Bbrx(),map->Bbry());
+  int ret=eps2pdf(*(m->pValue()),out,r);
+  if(0!=ret) {err="Conversion of EPS to PDF failed"; delete out; goto fail; } // Something wrong
+  return new ObjectGMTMapPDF(out,m->Bblx(),m->Bbly(),m->Bbrx(),m->Bbry());
  }
 
  fail:
- return 0;
+ return new ObjectError("EPS2PDF",err);
 }
 
 
@@ -286,112 +240,108 @@ antialiasing or aa - can be used to set graphics and text antialiasing simultane
 */
 const ObjectBase* GMT_Convert2PNG(const ObjectList* input)
 {
- if(!gs_abilities.havepdf) return 0; // No pdf support, so, no png
- double r;
- bool suc=true;
- const GMTMap* map=0;
- std::string gsdev("");
- bool ispdf;
- uint aat=0,aag=0;
- std::string aats("full"),aags("full");
- uint dscale=0;
-
- // Map to convert
+ std::string gsdev,err;
+ double res;
+
+ ONPar<Base2PosD> r("resolution",300),ds("d[own]scale",1.0);
+ ONPar<Base2Pos> w("width"),h("height");
+ ONPar<Base2StringD> cs("c[olor][ ]space","color"),taa("t[ext]a[nti]aliasing","full"),gaa("g[raphics]a[nti]aliasing","full"),aa("a[nti]aliasing","full");
+ const ObjectGMTMap* me;
+ const ObjectGMTMapPDF* mp;
+ const GMTMap* m;
+ uint aat,aag;
+ uint dscale;
+
+ if(!gs_abilities.havepdf) {err="No PDF support in Ghostscript"; goto fail;} // No pdf support, so, no png
+ // Search map
  {
-  for(ObjectList::IndexType i=0;i<input->Size();i++)
-  {
-   OBType<ObjectGMTMap> m(input->At(i));
-   OBType<ObjectGMTMapPDF> p(input->At(i));
-   if(m)
-   {
-    if(0!=map) goto fail; // Duplicate
-    map=m;
-    ispdf=false;
-   }
-   if(p)
-   {
-    if(0!=map) goto fail; // Duplicate
-    map=p;
-    ispdf=true;
-   }
-  }
-  if(0==map) goto fail; // Map not found
+  RNFPar<SearchGMTMap,ObjectGMTMap> mapeps("map");
+  RNFPar<SearchGMTMapPDF,ObjectGMTMap> mappdf("map");
+  ParseNamedParameters peps(input,mapeps);
+  ParseNamedParameters ppdf(input,mappdf);
+  if(!(peps || ppdf)) {err="Error parsing map parameter"; goto fail;}
+  me=mapeps; mp=mappdf;
+  if(nullptr==me && nullptr==mp) {err="Map parameter not specified"; goto fail;} // This must never happened
+  if(nullptr!=me) m=me; else m=mp;
+ }
+ // Parse other parameters
+ {
+  ParseNamedParameters params(input,r,ds,w,h,cs,taa,gaa,aa);
+  if(!params) {err=params.Error(); goto fail;}
  }
 
  // Determine resolution
  {
-  SearchParameter<double,false,PMin<1> > res(input,"r","res","resolution");
-  BaseM2Double w(input,"width","w"), h(input,"height","h");
   // Check existence
-  if( ( res.Exist() && w.Exist() ) || ( res.Exist() && h.Exist() ) || ( w.Exist() && h.Exist() )) goto fail; // Only one parameter allowed
-  r=300; // Default value
-  if(res.Exist()) r=res(&suc);
-  if(w.Exist()) r=w(&suc)*72.0/(map->Bbrx()-map->Bblx());
-  if(h.Exist()) r=h(&suc)*72.0/(map->Bbry()-map->Bbly());
-  if(!suc) goto fail; // Error
+  if( ( r.Exist() && w.Exist() ) || ( r.Exist() && h.Exist() ) || ( w.Exist() && h.Exist() )) {err="Only one of resolution, width or height may be specified"; goto fail;} // Only one parameter allowed
+  if(r.Exist()) res=r;
+  if(w.Exist()) res=w*72.0/(m->Bbrx()-m->Bblx());
+  if(h.Exist()) res=h*72.0/(m->Bbry()-m->Bbly());
  }
 
  // Color model
  {
-  std::string cs;
-  BaseMD2String cspace(input,"8bit","colorspace","cspace","cs");
-  cs=cspace(&suc);
-  if(!suc) goto fail; // Error
-  tolower(cs);
-  if(("mono"==cs || "monochrome"==cs) && gs_abilities.havepngmono) gsdev="pngmono";
-  if(("monod"==cs || "monodiffused"==cs) && gs_abilities.havepngmonod) gsdev="pngmonod";
-  if(("16c"==cs || "16"==cs) && gs_abilities.havepng16) gsdev="png16";
-  if(("256c"==cs || "256"==cs) && gs_abilities.havepng256) gsdev="png256";
-  if(("gray"==cs || "grey"==cs || "g"==cs) && gs_abilities.havepnggray) gsdev="pnggray";
-  if(("full"==cs || "8bit"==cs || "color"==cs) && gs_abilities.havepng16m) gsdev="png16m";
-  if(""==gsdev) goto fail; // Incorrect value
+  std::string cspace=cs;
+  tolower(cspace);
+  if(("mono" ==cspace || "monochrome"  ==cspace                   ) && gs_abilities.havepngmono)  gsdev="pngmono";
+  if(("monod"==cspace || "monodiffused"==cspace                   ) && gs_abilities.havepngmonod) gsdev="pngmonod";
+  if(("16c"  ==cspace || "16"          ==cspace                   ) && gs_abilities.havepng16)    gsdev="png16";
+  if(("256c" ==cspace || "256"         ==cspace                   ) && gs_abilities.havepng256)   gsdev="png256";
+  if(("gray" ==cspace || "grey"        ==cspace || "g"    ==cspace) && gs_abilities.havepnggray)  gsdev="pnggray";
+  if(("full" ==cspace || "8bit"        ==cspace || "color"==cspace) && gs_abilities.havepng16m)   gsdev="png16m";
+  if(gsdev.empty()) {err="Colorspace "+cs.Value()+" is bad or unsupported"; goto fail;} // Incorrect value
  }
 
  // Antialiasing
  {
-  BaseM2String aa(input,"antialiasing","aa"),taa(input,"textantialiasing","taa"),gaa(input,"graphicsantialiasing","gaa");
-  if(aa.Exist()) aags=aats=aa(&suc);
-  if(taa.Exist()) aats=taa(&suc);
-  if(gaa.Exist()) aags=gaa(&suc);
-  if(!suc) goto fail; // Error
+  std::string aags=aa,aats=aa;
+  if(taa.Exist()) aats=taa;
+  if(gaa.Exist()) aags=gaa;
   tolower(aags); tolower(aats);
-  if("none"==aags || "no"==aags || "n"==aags) aag=1; if("none"==aats || "no"==aats || "n"==aats) aat=1;
-  if("small"==aags || "s"==aags) aag=2; if("small"==aats || "s"==aats) aat=2;
-  if("full"==aags || "f"==aags) aag=4; if("full"==aats || "f"==aats) aat=4;
-  if(0==aat || 0==aag) goto fail; // Incorrect value
+
+  if("none" ==aags || "no"==aags || "n"==aags) aag=1;
+  if("none" ==aats || "no"==aats || "n"==aats) aat=1;
+
+  if("small"==aags || "s" ==aags             ) aag=2;
+  if("small"==aats || "s" ==aats             ) aat=2;
+
+  if("full" ==aags || "f" ==aags             ) aag=4;
+  if("full" ==aats || "f" ==aats             ) aat=4;
+
+  if(0==aat) {err="Incorrect value for text antialiasing: "+aats; goto fail;}
+  if(0==aag) {err="Incorrect value for graphics antialiasing: "+aags; goto fail;}
  }
 
  // Downscale
  if("pngmonod"==gsdev || "pnggray"==gsdev || "png16m"==gsdev)
  {
-  SearchParameterWDefO<double,DoubleDefaultVal<1>,false,PMin<1>,PMax<10>,PInt > ds(input,"downscale","dscale","ds");
-  dscale=static_cast<uint>(ds(&suc));
-  if(!suc) goto fail; // Error
-  r*=dscale;
+  dscale=static_cast<uint>(ds);
+  if(dscale<1 || dscale>10) {err="Downscale must be in interval from 1 to 10"; goto fail;}
+  res*=dscale;
  }
 
  // Go!
  {
   std::string* pdf=0;
   int ret;
-  if(!ispdf)
+  if(nullptr!=me)
   {
    pdf=new std::string;
-   ret=eps2pdf(*(map->pValue()),pdf,r,aat,aag);
-   if(0!=ret) { delete pdf; goto fail; } // Something wrong
+   ret=eps2pdf(*(me->pValue()),pdf,r,aat,aag);
+   if(0!=ret) {err="Can't convert EPS to PDF"; delete pdf; goto fail; } // Something wrong
   }
 
   {
    std::string* out=new std::string;
-   ret=GhostRun("-r"+ToString(r)+" -dTextAlphaBits="+ToString(aat)+" -dGraphicAlphaBits="+ToString(aag)+" -sDEVICE="+gsdev+((dscale>1)?(" -dDownScaleFactor="+ToString(dscale)):""),((0!=pdf)?*pdf:*(map->pValue())),0,0,out);
+   ret=GhostRun("-r"+ToString(res)+" -dTextAlphaBits="+ToString(aat)+" -dGraphicAlphaBits="+ToString(aag)+" -sDEVICE="+gsdev+((dscale>1)?(" -dDownScaleFactor="+ToString(dscale)):""),((0!=pdf)?*pdf:*(mp->pValue())),0,0,out);
    if(0!=pdf) delete pdf;
-   if(0!=ret) { delete out; goto fail; } // Something wrong
+   if(0!=ret) {err="Can't convert PDF to PNG"; delete out; goto fail; } // Something wrong
    return new ObjectGMTImage(out);
   }
  }
 
  fail:
- return 0;
+ return new ObjectError("EPS2PNG",err);
 }
 
 
@@ -410,104 +360,101 @@ antialiasing or aa - can be used to set graphics and text antialiasing simultane
 */
 const ObjectBase* GMT_Convert2JPG(const ObjectList* input)
 {
- if(!gs_abilities.havepdf) return 0; // No pdf support, so, no jpeg
- double r;
- bool suc=true;
- const GMTMap* map=0;
- std::string gsdev("");
- bool ispdf;
- uint aat=0,aag=0;
- std::string aats("full"),aags("full");
+ std::string gsdev,err;
+
+ ONPar<Base2PosD> r("resolution",300);
+ ONPar<Base2Pos> w("width"),h("height");
+ ONPar<Base2StringD> cs("c[olor][ ]space","color"),taa("t[ext]a[nti]aliasing","full"),gaa("g[raphics]a[nti]aliasing","full"),aa("a[nti]aliasing","full");
+ ONPar<Base2NonNegD> q("quality",75);
+ const ObjectGMTMap* me;
+ const ObjectGMTMapPDF* mp;
+ const GMTMap* m;
+ double res;
+ uint aat,aag;
  uint qual;
 
- // Map to convert
+ if(!gs_abilities.havepdf) {err="No PDF support in Ghostscript"; goto fail;} // No pdf support, so, no jpeg
+ // Search map
  {
-  for(ObjectList::IndexType i=0;i<input->Size();i++)
-  {
-   OBType<ObjectGMTMap> m(input->At(i));
-   OBType<ObjectGMTMapPDF> p(input->At(i));
-   if(m)
-   {
-    if(0!=map) goto fail; // Duplicate
-    map=m;
-    ispdf=false;
-   }
-   if(p)
-   {
-    if(0!=map) goto fail; // Duplicate
-    map=p;
-    ispdf=true;
-   }
-  }
-  if(0==map) goto fail; // Map not found
+  RNFPar<SearchGMTMap,ObjectGMTMap> mapeps("map");
+  RNFPar<SearchGMTMapPDF,ObjectGMTMap> mappdf("map");
+  ParseNamedParameters peps(input,mapeps);
+  ParseNamedParameters ppdf(input,mappdf);
+  if(!(peps || ppdf)) {err="Error parsing map parameter"; goto fail;}
+  me=mapeps; mp=mappdf;
+  if(nullptr==me && nullptr==mp) {err="Map parameter not specified"; goto fail;} // This must never happened
+  if(nullptr!=me) m=me; else m=mp;
+ }
+ // Parse other parameters
+ {
+  ParseNamedParameters params(input,r,q,w,h,cs,taa,gaa,aa);
+  if(!params) {err=params.Error(); goto fail;}
  }
 
  // Determine resolution
  {
-  SearchParameter<double,false,PMin<1> > res(input,"r","res","resolution");
-  BaseM2Double w(input,"width","w"), h(input,"height","h");
   // Check existence
-  if( ( res.Exist() && w.Exist() ) || ( res.Exist() && h.Exist() ) || ( w.Exist() && h.Exist() )) goto fail; // Only one parameter allowed
-  r=300; // Default value
-  if(res.Exist()) r=res(&suc);
-  if(w.Exist()) r=w(&suc)*72.0/(map->Bbrx()-map->Bblx());
-  if(h.Exist()) r=h(&suc)*72.0/(map->Bbry()-map->Bbly());
-  if(!suc) goto fail; // Error
+  if( ( r.Exist() && w.Exist() ) || ( r.Exist() && h.Exist() ) || ( w.Exist() && h.Exist() )) {err="Only one of resolution, width or height may be specified"; goto fail;} // Only one parameter allowed
+  if(r.Exist()) res=r;
+  if(w.Exist()) res=w*72.0/(m->Bbrx()-m->Bblx());
+  if(h.Exist()) res=h*72.0/(m->Bbry()-m->Bbly());
  }
 
  // Color model
  {
-  std::string cs;
-  BaseMD2String cspace(input,"8bit","colorspace","cspace","cs");
-  cs=cspace(&suc);
-  if(!suc) goto fail; // Error
-  tolower(cs);
-  if(("gray"==cs || "grey"==cs || "g"==cs) && gs_abilities.havejpeggray) gsdev="jpeggray";
-  if(("full"==cs || "8bit"==cs || "color"==cs) && gs_abilities.havejpeg) gsdev="jpeg";
-  if(""==gsdev) goto fail; // Incorrect value
+  std::string cspace=cs;
+  tolower(cspace);
+  if(("gray"==cspace || "grey"==cspace || "g"    ==cspace) && gs_abilities.havejpeggray) gsdev="jpeggray";
+  if(("full"==cspace || "8bit"==cspace || "color"==cspace) && gs_abilities.havejpeg)     gsdev="jpeg";
+  if(gsdev.empty()) {err="Colorspace "+cs.Value()+" is bad or unsupported"; goto fail;} // Incorrect value
  }
 
  // Antialiasing
  {
-  BaseM2String aa(input,"antialiasing","aa"),taa(input,"textantialiasing","taa"),gaa(input,"graphicsantialiasing","gaa");
-  if(aa.Exist()) aags=aats=aa(&suc);
-  if(taa.Exist()) aats=taa(&suc);
-  if(gaa.Exist()) aags=gaa(&suc);
-  if(!suc) goto fail; // Error
+  std::string aags=aa,aats=aa;
+  if(taa.Exist()) aats=taa;
+  if(gaa.Exist()) aags=gaa;
   tolower(aags); tolower(aats);
-  if("none"==aags || "no"==aags || "n"==aags) aag=1; if("none"==aats || "no"==aats || "n"==aats) aat=1;
-  if("small"==aags || "s"==aags) aag=2; if("small"==aats || "s"==aats) aat=2;
-  if("full"==aags || "f"==aags) aag=4; if("full"==aats || "f"==aats) aat=4;
-  if(0==aat || 0==aag) goto fail; // Incorrect value
+
+  if("none" ==aags || "no"==aags || "n"==aags) aag=1;
+  if("none" ==aats || "no"==aats || "n"==aats) aat=1;
+
+  if("small"==aags || "s" ==aags             ) aag=2;
+  if("small"==aats || "s" ==aats             ) aat=2;
+
+  if("full" ==aags || "f" ==aags             ) aag=4; 
+  if("full" ==aats || "f" ==aats             ) aat=4;
+
+  if(0==aat) {err="Incorrect value for text antialiasing: "+aats; goto fail;}
+  if(0==aag) {err="Incorrect value for graphics antialiasing: "+aags; goto fail;}
  }
 
  // Quality
  {
-  SearchParameterWDefO<double,DoubleDefaultVal<75>,false,PMin<0>,PMax<100>,PInt > q(input,"quality","qual","q");
-  qual=static_cast<uint>(q(&suc));
-  if(!suc) goto fail; // Error
+  qual=static_cast<uint>(q);
+  if(q>100) {err="JPEG quality must not exceed 100"; goto fail;} // Error
  }
 
  // Go!
  {
   std::string* pdf=0;
   int ret;
-  if(!ispdf)
+  if(nullptr!=me)
   {
    pdf=new std::string;
-   ret=eps2pdf(*(map->pValue()),pdf,r,aat,aag);
-   if(0!=ret) { delete pdf; goto fail; } // Something wrong
+   ret=eps2pdf(*(me->pValue()),pdf,r,aat,aag);
+   if(0!=ret) {err="Can't convert EPS to PDF"; delete pdf; goto fail; } // Something wrong
   }
 
   {
    std::string* out=new std::string;
-   ret=GhostRun("-r"+ToString(r)+" -dTextAlphaBits="+ToString(aat)+" -dGraphicAlphaBits="+ToString(aag)+" -sDEVICE="+gsdev+" -dJPEGQ="+ToString(qual),((0!=pdf)?*pdf:*(map->pValue())),0,0,out);
+   ret=GhostRun("-r"+ToString(res)+" -dTextAlphaBits="+ToString(aat)+" -dGraphicAlphaBits="+ToString(aag)+" -sDEVICE="+gsdev+" -dJPEGQ="+ToString(qual),((0!=pdf)?*pdf:*(mp->pValue())),0,0,out);
    if(0!=pdf) delete pdf;
-   if(0!=ret) { delete out; goto fail; } // Something wrong
+   if(0!=ret) {err="Can't convert PDF to JPEG"; delete out; goto fail; } // Something wrong
    return new ObjectGMTImage(out);
   }
  }
 
  fail:
- return 0;
+ return new ObjectError("EPS2JPEG",err);
 }

modules/gmt/modgmt_map.h

@@ -72,12 +72,29 @@ class ObjectGMTImage: public GMTBlob
  std::string Type() const override {return "GMTImage";}
 };
 
-// Policy for get integer value
-class PInt
+// Convertor to search object
+template<class Object>
+class SearchObject
 {
  public:
- double operator()(double v, bool* suc) const {if(v!=floor(v)) *suc=false; return v;}
+ using ValueType=const Object*;
+ template<class... Args>
+ ValueType Convert(const ObjectBase* ob, bool* res, std::string& err, Args... args)
+ {
+  OBType<Object> gp(ob);
+  switch(gp.Error())
+  {
+   case(OBTypeErr::OK): return gp;
+   case(OBTypeErr::NULLPTR): {err="Can't convert zero ObjectBase pointer to something meaningfull"; break;}
+   case(OBTypeErr::TYPEMISMATCH): {err=ob->Type()+" is not correct: type mismatch"; break;}
+  }
+  *res=false;
+  return nullptr;
+ }
 };
+// Convertor to search GMTMap objects
+using SearchGMTMap=SearchObject<ObjectGMTMap>;
+using SearchGMTMapPDF=SearchObject<ObjectGMTMapPDF>;
 
 // Creating eps map from set of layers
 const ObjectBase* GMT_Map(const ObjectList* input);

modules/gmt/modgmt_objects.cpp

@@ -36,41 +36,15 @@ std::map<std::string,gmt_projection::projection> gmt_projection::projnames;
 
 void gmt_projection::FillProjNames()
 {
- projnames["x"]=XY;
- projnames["xy"]=XY;
- projnames["decart"]=XY;
-
- projnames["q"]=CYL_EQU;
- projnames["cyl_equid"]=CYL_EQU;
- projnames["cylindrical equidistant"]=CYL_EQU;
-
- projnames["m"]=MERCATOR;
- projnames["merc"]=MERCATOR;
+ projnames["(xy|decart)"]=XY;
+ projnames["c[ylindrical][( |_)]equidistant"]=CYL_EQU;
  projnames["mercator"]=MERCATOR;
-
- projnames["t"]=TRANSMERCATOR;
- projnames["tmerc"]=TRANSMERCATOR;
- projnames["transverse mercator"]=TRANSMERCATOR;
-
- projnames["o"]=OBLIQMERCATOR;
- projnames["omerc"]=OBLIQMERCATOR;
- projnames["oblique mercator"]=OBLIQMERCATOR;
-
- projnames["c"]=CASSINI;
+ projnames["t[ransverse][( |_)]mercator"]=TRANSMERCATOR;
+ projnames["o[blique][( |_)]mercator"]=OBLIQMERCATOR;
  projnames["cassini"]=CASSINI;
-
- projnames["y"]=CYL_EQA;
- projnames["cyl_equala"]=CYL_EQA;
- projnames["cylindrical equal-area"]=CYL_EQA;
- projnames["cylindrical equalarea"]=CYL_EQA;
-
- projnames["j"]=MILLER;
- projnames["cyl_miller"]=MILLER;
- projnames["miller"]=MILLER;
- projnames["cylindrical miller"]=MILLER;
-
- projnames["cyl_stere"]=CYL_STERE;
- projnames["cylindrical stereographic"]=CYL_STERE;
+ projnames["c[ylindrical][( |_)]eq[ua(l|l-)]area"]=CYL_EQA;
+ projnames["[c[ylindrical][( |_)]]miller"]=MILLER;
+ projnames["c[ylindrical][( |_)]stereographic"]=CYL_STERE;
 }
 
 bool gmt_font::FillFontNames()

modules/gmt/modgmt_param.h

@@ -0,0 +1,297 @@
+#ifndef MODGMT_PARAM_H
+#define MODGMT_PARAM_H
+#include "modgmt_strcomp.h"
+#include "common.h"
+
+// Common ancestor for all parameters
+template<class Converter, bool Optional>
+class Parameter
+{
+ using ValueType=typename Converter::ValueType;
+ std::string name; // Used for error reporting
+ bool initialised;
+ Converter conv;
+ ValueType val;
+
+ template<bool hasDefault, class Conv=Converter>
+ struct Adapter;
+ template<class Conv>
+ struct Adapter<true,Conv> {static const typename Conv::ValueType& Val(const Conv& cnv) {return cnv.Default();}};
+ template<class Conv>
+ struct Adapter<false,Conv> {static typename Conv::ValueType Val(const Conv& cnv) {return typename Conv::ValueType();}};
+
+ template<class C>
+ struct CheckDefault
+ {
+  private:
+  static void detect(...);
+  template<class T> static decltype(std::declval<T>().Default()) detect(T);
+  public:
+  static constexpr bool value=std::is_same<ValueType, typename std::decay<decltype(detect(std::declval<C>()))>::type>::value;
+ };
+
+ protected:
+ Parameter(Parameter&&) = delete;
+ Parameter(const Parameter&) = delete;
+ Parameter() = delete;
+
+ template<class... Args>
+ Parameter(std::string&& str, Args... args): name(std::move(str)), initialised(false), conv(args...)
+ {
+  val=Adapter<CheckDefault<Converter>::value>::Val(conv);
+ }
+ template<class... Args>
+ Parameter(const std::string& str, Args... args): name(str), initialised(false), conv(args...)
+ {
+  val=Adapter<CheckDefault<Converter>::value>::Val(conv);
+ }
+
+ void SetState(bool newini) {initialised=newini;}
+
+ public:
+ bool Init(const ObjectBase* p, std::string& err)
+ {
+  std::string cerr;
+  bool res=true;
+  ValueType tval=conv.Convert(p,&res,cerr);
+  SetState(res);
+  if(res) val=std::move(tval);
+  else err=std::move(cerr);
+  return res;
+ }
+ bool Initialised() const {return initialised;}
+ bool Exist() const {return initialised;}
+ const std::string& Name() const {return name;}
+ constexpr bool isOptional() const {return Optional;}
+ const ValueType& Value() {return val;}
+ const ValueType* operator->() const {return &val;}
+ operator const ValueType&() {return val;}
+ void Reset() {initialised=false; val=Adapter<CheckDefault<Converter>::value>::Val(conv);}
+
+ static constexpr bool optional=Optional;
+ using ConverterType=Converter;
+};
+
+
+// Class for parameter which must be in named pair
+template <class Converter, bool O>
+class NamedParameter: public TemplateComparator, public Parameter<Converter,O>
+{
+ public:
+ using AcceptableObject=void;
+ template<class... Args>
+ NamedParameter(const std::string& t, Args... args):TemplateComparator(t),Parameter<Converter,O>(Template2Name(),args...) {}
+};
+
+
+// Class for parameter which can be in named pair or as object of type Object
+template <class Converter, bool O, class Object>
+class NamedFreeParameter: public NamedParameter<Converter,O>
+{
+ public:
+ using AcceptableObject=Object;
+ template<class... Args>
+ NamedFreeParameter(Args... args):NamedParameter<Converter,O>(args...) {}
+};
+
+// Class for parameter which can be in some positions in list
+template <class Converter, bool O>
+class PositionalParameter: public Parameter<Converter,O>
+{
+ public:
+ template<class... Args>
+ PositionalParameter(Args... args):Parameter<Converter,O>(args...) {}
+};
+
+
+// Base class for ParseNamedParameters and ParsePositionalParameters
+class ParseParameters
+{
+ protected:
+ std::string err;
+ ParseParameters():err() {}
+ ParseParameters(const ParseParameters&) = delete;
+ ParseParameters(ParseParameters&&) = delete;
+
+ public:
+ std::string Error() const {return err;}
+ bool Ok() const {return err.empty();}
+ operator bool() const {return Ok();}
+};
+
+// Parsing positional parameters
+class ParsePositionalParameters: public ParseParameters
+{
+ ParsePositionalParameters() = delete;
+ ParsePositionalParameters(const ParsePositionalParameters&) = delete;
+ ParsePositionalParameters(ParsePositionalParameters&&) = delete;
+
+ // Main parsing function
+ template <class Par, class... Args>
+ void Parse(ObjectList::IndexType i, ObjectList::IndexType max, const ObjectList* ol, Par& param, Args&... args)
+ {
+  // Check types of arguments
+  static_assert(std::is_same<PositionalParameter<typename Par::ConverterType, Par::optional>,Par>::value,"ParsePositionalParameters argument(s) must be PositionalParameter");
+
+  // Check if parameter already initialised. This is code error.
+  if(param.Initialised())
+  {
+   err="Parameter "+param.Name()+" already initialised. This is code error.";
+   return;
+  }
+
+  // List is ended
+  if(i>=max)
+  {
+   // Parameter is optional, skip it
+   if(Par::optional) Parse(i,max,ol,args...);
+   // Parameter is required, this is an error
+   else err="Parameter "+param.Name()+" is required, but can't be setted because list is ended";
+  }
+  // Initialise from some list element
+  else
+  {
+   bool res=param.Init(ol->At(i),err);
+   // All Ok, continue to next element in list
+   if(res) Parse(i+1,max,ol,args...);
+   else
+   {
+    // All Ok, optional parameter may be absent, try to initialise next parameter by same list element
+    if(Par::optional) Parse(i,max,ol,args...);
+    // Error, required parameter not initialised
+    else err="Can't initialise parameter "+param.Name()+" from list element number "+ToString(i)+": "+err;
+   }
+  }
+ }
+ // Bottom of recursion
+ void Parse(ObjectList::IndexType i, ObjectList::IndexType max, const ObjectList* ol) {if(i<max) err="There are excess elements in list";}
+
+ public:
+ template <class Converter, bool optional, class... Args>
+ ParsePositionalParameters(const ObjectList* ol, PositionalParameter<Converter,optional>& p1, Args&... args) {Parse(0,ol->Size(),ol,p1,args...);}
+ template <class Converter, bool optional, class... Args>
+ ParsePositionalParameters(const ObjectList* ol, ObjectList::IndexType min, ObjectList::IndexType max, PositionalParameter<Converter,optional>& p1, Args&... args) {Parse(min,std::min(max,ol->Size()),ol,p1,args...);}
+};
+
+
+// Parsing named parameters
+class ParseNamedParameters: public ParseParameters
+{
+ ParseNamedParameters() = delete;
+ ParseNamedParameters(const ParseNamedParameters&) = delete;
+ ParseNamedParameters(ParseNamedParameters&&) = delete;
+
+ // Parsing function for elements without names
+ // ob - object from which we initialise parameter param.
+ // init - is ob was already used for initialise something.
+ // args - other parameters
+ // Function try to initialise parameter param, if param accepted real type of ob for initialisation, else function try to initialise next parameter in args.
+ // Function return error if initialisation of parameter failed or if two parameters can be initialised from ob.
+ template <class Par, class... Args>
+ bool ParseSingle(const ObjectBase* ob, bool init, Par& param, Args&... args)
+ {
+  // Check types of arguments
+  static_assert(std::is_same<NamedParameter<typename Par::ConverterType, Par::optional>,Par>::value || std::is_same<NamedFreeParameter<typename Par::ConverterType, Par::optional, typename Par::AcceptableObject>,Par>::value,"ParseNamedParameters argument(s) must be NamedParameter or NamedFreeParameter");
+
+  OBType<typename Par::AcceptableObject> o(ob);
+  if(o && init)
+  {
+   err="Object of type "+ob->Type()+" used for initialisation of two parameters. This is code error.";
+   return false;
+  }
+  if(!o) return ParseSingle(ob,init,args...); // Type mismatch, goto next parameter
+  if(param.Initialised())
+  {
+   err="Parameter "+param.Name()+" can't be initialised from object of type "+ob->Type()+" because it already initialised.";
+   return false;
+  }
+  std::string ierr;
+  if(!param.Init(ob,ierr))
+  {
+   err="Parameter "+param.Name()+" can't be initialised from object of type "+ob->Type()+": "+ierr;
+   return false;
+  }
+  return ParseSingle(ob,true,args...);
+ }
+ // Bottom of recursion
+ bool ParseSingle(const ObjectBase* ob, bool init) const {return true;}
+
+ // Parsing function for elements in pairs
+ // op - pair from which we initialise parameter param.
+ // pname - name of parameter already initialised from op (or empty string).
+ // args - other parameters
+ // Function try to initialise parameter param, if pair name corresponding to param template, else function try to initialise next parameter in args.
+ // Function return error if initialisation of parameter failed or if two parameters can be initialised from op.
+ template <class Par, class... Args>
+ bool ParsePair(const ObjectPair* op, std::string& pname, Par& param, Args&... args)
+ {
+  // Check types of arguments
+  static_assert(std::is_same<NamedParameter<typename Par::ConverterType, Par::optional>,Par>::value || std::is_same<NamedFreeParameter<typename Par::ConverterType, Par::optional, typename Par::AcceptableObject>,Par>::value,"ParseNamedParameters argument(s) must be NamedParameter or NamedFreeParameter");
+
+  bool cmp=param.Compare(op->Name());
+  if(cmp && !pname.empty())
+  {
+   err="Element "+op->Name()+" can be used for initialisation of two parameters: "+pname+" and "+param.Name();
+   return false;
+  }
+  if(!cmp) return ParsePair(op,pname,args...); // Name mismatch, goto next parameter
+  pname=param.Name();
+  if(param.Initialised())
+  {
+   err="Parameter "+param.Name()+" can't be initialised from element "+op->Name()+" because it already initialised.";
+   return false;
+  }
+  std::string ierr;
+  if(!param.Init(op->Value(),ierr))
+  {
+   err="Parameter "+param.Name()+" can't be initialised from element "+op->Name()+": "+ierr;
+   return false;
+  }
+  return ParsePair(op,pname,args...);
+ }
+ // Bottom of recursion
+ bool ParsePair(const ObjectPair* op, std::string& pname) const {return true;}
+
+ template <class Par, class... Args>
+ void CheckRequired(const Par& param, Args&... args)
+ {
+  if((Par::optional || param.Initialised())) CheckRequired(args...);
+  else err="Parameter "+param.Name()+" is required, but not initialised";
+ }
+ // Bottom of recursion
+ void CheckRequired() const {}
+
+ public:
+ template <class... Args>
+ ParseNamedParameters(const ObjectList* ol, Args&... args)
+ {
+  // Initialisation
+  std::string pname;
+  for(ObjectList::const_iterator i=ol->begin();i!=ol->end();++i)
+  {
+   pname.erase();
+   OBType<ObjectPair> p(*i);
+   if( !(p?ParsePair(p,pname,args...):ParseSingle(*i,false,args...)) ) break;
+  }
+  if(!Ok()) return; // Error on initialisation phase
+  // Check if all required parameters are initialised
+  CheckRequired(args...);
+ }
+};
+
+template<class Converter>
+using ONPar=NamedParameter<Converter,true>;
+template<class Converter>
+using RNPar=NamedParameter<Converter,false>;
+
+template<class Converter, class Object>
+using ONFPar=NamedFreeParameter<Converter,true,Object>;
+template<class Converter, class Object>
+using RNFPar=NamedFreeParameter<Converter,false,Object>;
+
+template<class Converter>
+using OPosPar=PositionalParameter<Converter,true>;
+template<class Converter>
+using RPosPar=PositionalParameter<Converter,false>;
+
+#endif

modules/gmt/modgmt_strcomp.h

@@ -1,9 +1,10 @@
-#include <iostream>
+#ifndef MODGMT_STRCOMP_H
+#define MODGMT_STRCOMP_H
 #include <memory>
 #include <set>
 #include <string>
-#include <vector>
 
+// Compare string with template
 class TemplateComparator
 {
  TemplateComparator() = delete;
@@ -47,6 +48,12 @@ class TemplateComparator
  Cursors cursors;
  const std::string s;
 
+ void Reset()
+ {
+  cursors.clear();
+  InitCursors(root.get());
+ }
+
  public:
  TemplateComparator(const char* str):s(str) {root=Parse();}
  TemplateComparator(const std::string& str):s(str) {root=Parse();}
@@ -59,9 +66,33 @@ class TemplateComparator
   return true;
  }
 
- void Reset()
+ std::string Template2Name() const
  {
-  cursors.clear();
-  InitCursors(root.get());
+  const struct Block* b=root.get();
+  std::string res;
+  while(true)
+  {
+   // Processing current block
+   switch(b->type)
+   {
+    case(Block::TEXT): {res+=s.substr(b->b,b->e-b->b); break;}
+    case(Block::OPTIONAL):
+    case(Block::VARIANTS): {b=b->child.get(); goto next;}
+    case(Block::DELIM): {b=b->parent; break;}
+    default: {}
+   }
+   // Go to next block
+   while(true)
+   {
+    if(nullptr!=b->next) {b=b->next.get(); goto next;}
+    if(nullptr!=b->parent) b=b->parent;
+    else break;
+   }
+   if(nullptr==b->next && nullptr==b->parent) break;
+   next: ;
+  }
+  return res;
  }
 };
+
+#endif

modules/gmt/modgmt_structs.h

@@ -6,6 +6,7 @@
 #include <vector>
 #include "common.h"
 #include "modgmt_colornames.h"
+#include "modgmt_strcomp.h"
 
 // Centimeters to GMT points scale factor
 // 1 inch = 72 pt = 2.54 cm  -->  1 cm = 72/2.54 pt
@@ -31,7 +32,7 @@ class GetDouble<Source, Policy, Policies...>: public GetDouble<Source, Policies.
  GetDouble(GetDouble&) = delete;
  template<class... Args>
  GetDouble(Args... args):GetDouble<Source,Policies...>(args...) {};
- double operator()(bool* suc) const {return p(GetDouble<Source,Policies...>::operator()(suc),suc);}
+ double operator()(bool* suc, std::string& err) const {return p(GetDouble<Source,Policies...>::operator()(suc,err),suc,err);}
 };
 
 // Bottom of recursion
@@ -44,37 +45,57 @@ class GetDouble<Source>: public Source
  GetDouble() = delete;
  template<class... Args>
  GetDouble(Args... args):Source(args...) {};
- double operator()(bool* suc) const {return Source::operator()(suc);}
+ double operator()(bool* suc, std::string& err) const {return Source::operator()(suc, err);}
 };
 
 // We use rational representation of floating point number, because double type values not allowed as template parameter
 // Policy to check if value is greater or equal num/denum
-template<int32_t num, uint32_t denum=1>
+template<int32_t num, uint32_t denum=1, bool equal=true>
 class PMin
 {
+ static bool Compare(double d1, double d2) {return equal?(d1<=d2):(d1<d2);}
+
  public:
- double operator()(double v, bool* suc) const {if(v<static_cast<double>(num)/denum) *suc=false; return v;}
+ double operator()(double v, bool* suc, std::string& err) const
+ {
+  if(Compare(v,static_cast<double>(num)/denum))
+  {
+   *suc=false;
+   if(err.empty()) err="Value "+ToString(v)+" must be greater "+(equal?"or equal ":"")+"then "+ToString(num)+((denum==1)?"":("/"+ToString(denum)));
+  }
+  return v;
+ }
 };
 
 // Policy to check if value is lesser or equal num/denum
-template<int32_t num, uint32_t denum=1>
+template<int32_t num, uint32_t denum=1, bool equal=true>
 class PMax
 {
+ static bool Compare(double d1, double d2) {return equal?(d1>=d2):(d1>d2);}
+
  public:
- double operator()(double v, bool* suc) const {if(v>static_cast<double>(num)/denum) *suc=false; return v;}
+ double operator()(double v, bool* suc, std::string& err) const
+ {
+  if(Compare(v,static_cast<double>(num)/denum))
+  {
+   *suc=false;
+   if(err.empty()) err="Value "+ToString(v)+" must be lesser "+(equal?"or equal ":"")+"then "+ToString(num)+((denum==1)?"":("/"+ToString(denum)));
+  }
+  return v;
+ }
 };
 
 // Get double value from string or number
 class SourceValue
 {
  double d;
- bool ok;
+ std::string err;
  public:
- SourceValue(const std::string& s) {ok=str2double(s,&d);}
- SourceValue(double s):d(s),ok(true) {}
- double operator()(bool* suc) const
+ SourceValue(const std::string& s) {if(!str2double(s,&d)) err="Can't convert string \""+s+"\" to double value";}
+ SourceValue(double s):d(s) {}
+ double operator()(bool* suc, std::string& ierr) const
  {
-  if(!ok) *suc=false;
+  if(!err.empty()) {*suc=false; ierr=err;}
   return d;
  }
 };
@@ -82,7 +103,7 @@ class SourceValue
 // Helper types for colors
 typedef GetDouble<SourceValue,PMin<0>,PMax<255> > Value2RGB;
 typedef GetDouble<SourceValue,PMin<0>,PMax<360> > Value2Hue;
-typedef GetDouble<SourceValue,PMin<0>,PMax<1> > Value2SV;
+typedef GetDouble<SourceValue,PMin<0>,PMax< 1 > > Value2SV;
 typedef GetDouble<SourceValue,PMin<0>,PMax<100> > Value2CMYK;
 typedef GetDouble<SourceValue,PMin<0>,PMax<100> > Value2Transp;
 // Helper type for pens and dashes
@@ -116,7 +137,8 @@ struct gmt_coord: public gmt_struct
   if(isdeg) return (d+(m+s/60.0)/60.0)*(sign?1:-1);
   else return r;
  }
- bool Convert(const std::string& str)
+
+ bool Convert(const std::string& str, std::string& err)
  {
   WordList wl;
   WordList::const_iterator cw;
@@ -124,34 +146,37 @@ struct gmt_coord: public gmt_struct
   if(1==wl.size()) // No dd:mm
   {
    isdeg=false;
-   return str2double(str,&r);
+   bool res=str2double(str,&r);
+   if(!res) err="Can't convert string "+str+" to double value";
+   return res;
   }
-  if(0==wl.size() || wl.size()>3) return false;
+  if(0==wl.size() || wl.size()>3) {err="String "+str+" have incorrect format for geographic coordinate, must be ddd[:mm[:ss[.fff]]]"; return false;}
 
   isdeg=true;
   int64_t res;
 
   // degrees
   cw=wl.begin();
-  if(!str2int(*cw,&res)) return false;
+  if(!str2int(*cw,&res)) {err="Can't convert "+*cw+" to integer"; return false;}
   if(res>360 || res<-360) res%=360;
   sign=(std::string::npos==cw->find('-'));
   d=static_cast<uint16_t>(sign?res:-res);
   // minutes
   cw++;
-  if(!str2int(*cw,&res)) return false;
-  if(res<0 || res>=60) return false;
+  if(!str2int(*cw,&res)) {err="Can't convert "+*cw+" to integer"; return false;}
+  if(res<0 || res>=60) {err="Minutes must be not lesser then 0 and lesser then 60"; return false;}
   m=static_cast<uint8_t>(res);
   s=0;
 
   // seconds
   cw++;
   if(wl.end()==cw) return true; // No seconds
-  if(!str2double(*cw,&s) ) return false;
-  if(s<0.0 || s>=60.0) return false;
+  if(!str2double(*cw,&s) ) {err="Can't convert "+*cw+" to double"; return false;}
+  if(s<0.0 || s>=60.0) {err="Seconds must be not lesser then 0 and lesser then 60"; return false;}
   return true;
  }
- bool Convert(double num)
+
+ bool Convert(double num, std::string& err)
  {
   isdeg=false;
   r=num;
@@ -181,24 +206,25 @@ struct gmt_region: public gmt_struct
 
  // Only "global", "global180" and "global360"
  // TODO: add parsing of "-R" strings
- bool Convert(const std::string& istr)
+ bool Convert(const std::string& istr, std::string& err)
  {
   std::string str=istr;
   tolower(str);
   if("global180"==str)
   {
    type=GLOBAL180;
-   xb.Convert(-180.0); xe.Convert(180.0);
-   yb.Convert(-90.0); ye.Convert(90.0);
+   xb.Convert(-180.0,err); xe.Convert(180.0,err);
+   yb.Convert(-90.0,err); ye.Convert(90.0,err);
    return true;
   }
   if("global360"==str || "global"==str)
   {
    type=GLOBAL360;
-   xb.Convert(0.0); xe.Convert(360.0);
-   yb.Convert(-90.0); ye.Convert(90.0);
+   xb.Convert(0.0,err); xe.Convert(360.0,err);
+   yb.Convert(-90.0,err); ye.Convert(90.0,err);
    return true;
   }
+  err="Can't convert "+istr+" to region.";
   return false;
  }
 
@@ -277,24 +303,58 @@ struct gmt_projection: public gmt_struct
      case(OType::C): {ret="-JOb"+o.clon.Value()+"/"+o.clat.Value()+"/"+o.polelon.Value()+"/"+o.polelat.Value()+"/"+ToString(width)+"c"; break;}
      default: return "";
     }
+    break;
    }
    case(CASSINI): {ret="-JC"+c.clon.Value()+"/"+c.clat.Value()+"/"+ToString(width)+"c"; break;}
-   case(CYL_EQA): {ret="-JY"+y.stpar.Value()+"/"+y.cmer.Value()+"/"+ToString(width)+"c"; break;}
+   case(CYL_EQA): {ret="-JY"+y.cmer.Value()+"/"+y.stpar.Value()+"/"+ToString(width)+"c"; break;}
    case(MILLER): {ret="-JJ"+j.cmer.Value()+"/"+ToString(width)+"c"; break;}
-   case(CYL_STERE): {ret="-JCyl_stere"+cyl_stere.stpar.Value()+"/"+cyl_stere.cmer.Value()+"/"+ToString(width)+"c"; break;}
+   case(CYL_STERE): {ret="-JCyl_stere/"+cyl_stere.stpar.Value()+"/"+cyl_stere.cmer.Value()+"/"+ToString(width)+"c"; break;}
    default: return "";
   }
   ret+=" "+region.Value();
   return ret;
  }
- bool SetType(const std::string& s)
+ bool SetType(const std::string& s, std::string& err)
  {
   proj=NOTDEF;
   std::string str=s;
   tolower(str);
-  if(projnames.end()==projnames.find(str)) return false;
-  proj=projnames[str];
-  return true;
+
+  // Handle one symbol cases
+  if(str.size()==1) switch(str[0])
+  {
+   case('c'): {proj=CASSINI; return true;}
+   case('j'): {proj=MILLER; return true;}
+   case('m'): {proj=MERCATOR; return true;}
+   case('o'): {proj=OBLIQMERCATOR; return true;}
+   case('q'): {proj=CYL_EQU; return true;}
+   case('t'): {proj=TRANSMERCATOR; return true;}
+   case('x'): {proj=XY; return true;}
+   case('y'): {proj=CYL_EQA; return true;}
+   default: break;
+  }
+  // Handle long GMT names
+  if("cyl_stere"==str) {proj=CYL_STERE; return true;}
+  // Handle common names
+  std::string t1;
+  for(const auto& m: projnames)
+  {
+   TemplateComparator cmp(m.first);
+   bool res=cmp.Compare(str);
+   if(!res) continue;
+   if(NOTDEF!=proj) // Ambiguos string
+   {
+    err="Ambiguous projection definition: did you mean \""+t1+"\" or \""+cmp.Template2Name()+"\"?";
+    proj=NOTDEF;
+    return false;
+   }
+   t1=cmp.Template2Name();
+   proj=m.second;
+  }
+
+  if(NOTDEF!=proj) return true; // All Ok
+  err="Unknown projection: "+s;
+  return false;
  }
 
  static void FillProjNames();
@@ -505,18 +565,29 @@ struct gmt_color: public gmt_struct
   cyan=cc.cyan; magenta=cc.magenta; yellow=cc.yellow; black=cc.black;
  }
 
+ void ToModel(ColorModel newmodel)
+ {
+  switch(newmodel)
+  {
+   case(RGB):  ToRGB();  return;
+   case(GRAY): ToGray(); return;
+   case(HSV):  ToHSV();  return;
+   case(CMYK): ToCMYK(); return;
+  }
+ }
+
  // Interpret one numeric argument as gray value
- bool Convert(double gr)
+ bool Convert(double gr, std::string& err)
  {
   Value2RGB g(gr);
   bool suc=true;
   model=GRAY;
   transparency=0.0;
-  gray=g(&suc);
+  gray=g(&suc,err);
   return suc;
  }
 
- bool Convert(const std::string& istr)
+ bool Convert(const std::string& istr, std::string& err)
  {
   std::string cstr=istr;
   tolower(cstr);
@@ -533,7 +604,7 @@ struct gmt_color: public gmt_struct
     cstr=*ci;
     ci++;
     Value2Transp t(*ci);
-    transparency=t(&suc);
+    transparency=t(&suc,err);
     if(!suc) return false; // Parse error
    }
   }
@@ -541,9 +612,9 @@ struct gmt_color: public gmt_struct
    WordList wl_slash=Split(cstr,"/"),wl_hyphen=Split(cstr,"-");
    WordList::size_type slash_size=wl_slash.size(),hyphen_size=wl_hyphen.size();
    // Checks
-   if(slash_size>1 && hyphen_size>1) return false; // Delimiter can be "/" or "-", not both
-   if(2==slash_size || slash_size>4) return false; // Size can be 1 or 3 for rgb or 4 for cmyk
-   if(2==hyphen_size || hyphen_size>3) return false; // Size can be 1 or 3 for hsv
+   if(slash_size>1 && hyphen_size>1) {err="Delimeter of color components must be \"/\" or \"-\", not both"; return false;}
+   if(2==slash_size || slash_size>4) {err="Number of color components must be 1 for GRAY, 3 for RGB or 4 for CMYK"; return false;}
+   if(2==hyphen_size || hyphen_size>3) {err="There is 3 color components in HSV model"; return false;}
    // Gray or name
    // TODO: Hex representation
    if(1==slash_size && 1==hyphen_size)
@@ -552,7 +623,8 @@ struct gmt_color: public gmt_struct
     Value2RGB g(cstr);
     bool suc=true;
     model=GRAY;
-    gray=g(&suc);
+    gray=g(&suc,err);
+    err="Can't understand string "+cstr+", this is nor color name, nor gray value (0-255)";
     return suc;
    }
    // RGB
@@ -563,9 +635,9 @@ struct gmt_color: public gmt_struct
     Value2RGB blue(wl_slash.front());
     bool suc=true;
     model=RGB;
-    r=red(&suc);
-    g=green(&suc);
-    b=blue(&suc);
+    r=red(&suc,err);  if(!suc) return suc;
+    g=green(&suc,err);if(!suc) return suc;
+    b=blue(&suc,err);
     return suc;
    }
    // HSV
@@ -576,9 +648,9 @@ struct gmt_color: public gmt_struct
     Value2SV v(wl_hyphen.front());
     bool suc=true;
     model=HSV;
-    hue=h(&suc);
-    saturation=s(&suc);
-    value=v(&suc);
+    hue=h(&suc,err);       if(!suc) return suc;
+    saturation=s(&suc,err);if(!suc) return suc;
+    value=v(&suc,err);
     return suc;
    }
    // CMYK
@@ -590,10 +662,10 @@ struct gmt_color: public gmt_struct
     Value2CMYK k(wl_slash.front());
     bool suc=true;
     model=CMYK;
-    cyan=c(&suc);
-    magenta=m(&suc);
-    yellow=y(&suc);
-    black=k(&suc);
+    cyan=c(&suc,err);   if(!suc) return suc;
+    magenta=m(&suc,err);if(!suc) return suc;
+    yellow=y(&suc,err); if(!suc) return suc;
+    black=k(&suc,err);
     return suc;
    }
   }
@@ -638,7 +710,7 @@ struct gmt_dash: public gmt_struct
  operator bool() const {return !dash.empty();}
  void Clear() {dash.clear(); shift=0.0; wisrel=false;}
 
- bool Convert(const std::string& in, double w=0.0)
+ bool Convert(const std::string& in, std::string& err, double w=0.0)
  {
   Clear();
   shift=0;
@@ -659,12 +731,12 @@ struct gmt_dash: public gmt_struct
   // Determine shift
   {
    WordList wl=Split(in,":");
-   if(wl.size()>1) return false;
-   if(1==wl.size())
+   if(wl.size()>2) {err="Incorrect dash format"; return false;}
+   if(2==wl.size())
    {
     Value2Width s(wl.back());
     bool suc=true;
-    shift=s(&suc);
+    shift=s(&suc,err);
     if(!suc) return false; // Parse error
     dstr=wl.front();
    }
@@ -674,7 +746,7 @@ struct gmt_dash: public gmt_struct
   {
    Value2Width d(i);
    bool suc=true;
-   dash.push_back(d(&suc));
+   dash.push_back(d(&suc,err));
    if(!suc) return false; // Parse error
   }
   return true;
@@ -692,18 +764,18 @@ struct gmt_pen: public gmt_struct
  std::string Value() const {return ToString(width/10.0)+"c,"+color.Value()+(dash?(","+dash.Value()):"");}
 
  // Interpret one numeric argument as width value
- bool Convert(double in)
+ bool Convert(double in, std::string& err)
  {
   Value2Width w(in);
   bool suc=true;
-  color.Convert(0); // Black
+  color.Convert(0,err); // Black
   dash.Clear();
-  width=w(&suc);
+  width=w(&suc,err);
   return suc;
  }
 
  // Convert from string
- bool Convert(const std::string& istr)
+ bool Convert(const std::string& istr, std::string& err)
  {
   std::string str=istr;
   WordList::const_iterator ci;
@@ -712,7 +784,7 @@ struct gmt_pen: public gmt_struct
 
   // Defaults
   width=default_width;
-  color.Convert(0); // Black
+  color.Convert(0,err); // Black
   dash.Clear();
 
   if(wl.size()>3) return false; // String is [width][,color][,dash]
@@ -721,18 +793,18 @@ struct gmt_pen: public gmt_struct
   {
    Value2Width w(*ci);
    bool suc=true;
-   width=w(&suc);
+   width=w(&suc,err);
    if(!suc) return false; // Parse error
   }
   if(wl.end()!=ci) ci++;
   if(wl.end()!=ci && 0!=ci->size())
   {
-   if(!color.Convert(*ci)) return false; // Parse error
+   if(!color.Convert(*ci,err)) return false; // Parse error
   }
   if(wl.end()!=ci) ci++;
   if(wl.end()!=ci && 0!=ci->size())
   {
-   if(!dash.Convert(*ci,width)) return false; // Parse error
+   if(!dash.Convert(*ci,err,width)) return false; // Parse error
   }
   return true;
  }
@@ -752,53 +824,58 @@ struct gmt_font: public gmt_struct
  std::string Value() const {return ToString(size)+"p,"+family+","+color.Value();}
 
  // Interpret one numeric argument as size of default black font
- bool Convert(double in)
+ bool Convert(double in, std::string& err)
  {
   Value2Width s(in);
   bool suc=true;
-  color.Convert(0); // Black
-  size=s(&suc);
+  color.Convert(0,err); // Black
+  size=s(&suc,err);
   family=default_family;
   return suc;
  }
 
  // Convert from string
- bool Convert(const std::string& str)
+ bool Convert(const std::string& str, std::string& err)
  {
   WordList::const_iterator ci;
   WordList wl=Split(str,",",true);
+  std::string fakeerr;
 
   // Defaults
   size=default_size;
   family=default_family;
-  color.Convert(0); // Black
+  color.Convert(0,fakeerr); // Black
 
-  if(wl.size()>3) return false; // String is [size][,family][,color] or [family][,color]
+  if(wl.size()>3) {err="String "+str+" is not font string"; return false;} // String is [size][,family][,color] or [family][,color]
   ci=wl.begin();
   if(wl.end()!=ci && 0!=ci->size())
   {
    Value2Width s(*ci);
    bool suc=true;
-   size=s(&suc);
+   {
+    std::string fake;
+    double newsize=s(&suc,fake);
+    if(suc) size=newsize;
+   }
    if(!suc) // Parse error. check if argument is font name
    {
     if(0==families.count(*ci)) return false; // No, argument is not allowed font name
     family=*ci;
-    if(wl.size()>2) return false; // If first word is font name, then words count is 1 or 2.
+    if(wl.size()>2) {err="String "+str+" is not font string"; return false;} // If first word is font name, then words count is 1 or 2.
     goto read_color;
    }
   }
   if(wl.end()!=ci) ci++;
   if(wl.end()!=ci && 0!=ci->size())
   {
-   if(0==families.count(*ci)) return false; // Argument is not allowed font name
+   if(0==families.count(*ci)) {err="Unknown font family: "+(*ci); return false;} // Argument is not allowed font name
    family=*ci;
   }
   read_color:
   if(wl.end()!=ci) ci++;
   if(wl.end()!=ci && 0!=ci->size())
   {
-   if(!color.Convert(*ci)) return false; // Parse error
+   if(!color.Convert(*ci,err)) return false; // Parse error
   }
   return true;
  }

src/object.cpp

@@ -170,7 +170,7 @@ const ObjectBase* Evaluate(ExecExpr& exp, bool* err)
     exp.erase(pr);
 
     // Error handling
-    if(!errl.empty())
+    if( res==nullptr || res->isError() )
     {
      const struct grammatic_location& loc=cse->Location();
      *err=true; // Raise error flag

tests/GMTCoord

@@ -0,0 +1,11 @@
+# Description: Coord tests. Must passed.
+# Status: ok
+# Output hash: 1a1ca4aba24d0fe39407eef250167aca5c21373722f5f2a9bd6495cee34abaf2
+@use "gmt"
+
+a=Coord("10:30:18");
+b=Coord(10.5);
+c=Coord(":10:10");
+d=Coord("-0:15:18");
+
+print(a,a.n,b,b.n,c,c.n,d,d.n);

tests/GMTCoord_e1

@@ -0,0 +1,8 @@
+# Description: Non-integer degrees in dd:mm:ss mode.
+# Status: fail
+# Output hash: 9469953f706df02349e019f8b47a499d169113b654aee46cacb966d01a27848c
+@use "gmt"
+
+a=Coord("1.0:10");
+
+print(a);

tests/GMTProjection

@@ -0,0 +1,18 @@
+# Description: Projections test
+# Status: ok
+# Output hash: 18656de8c59c9a218b71dc730a3a1e8f1016179622392b11f052c64210f6fa2d
+@use "gmt"
+
+r=Region("130",150,30,50);
+
+px=Projection("dec",10,(10,20,10,20),15);
+p=Projection(r,type="cyl equid",h=10,stpar=0);
+p1=Projection(p,type="m",w=10);
+p2b=Projection("ob",10,r,"eq",(r.xe.n+r.xb.n)/2,(r.ye.n+r.yb.n)/2,140,15);
+p2=Projection(p2b,he=10);
+p3=Projection("cas",11,r);
+p4=Projection(r,type="cequa",11);
+p5=Projection(p4,type="j",centralm="130:30");
+p6=Projection("cylstereo",10,r);
+
+print(px,p,p1,p2,p3,p4,p5,p6);

tests/GMTRegion1

@@ -0,0 +1,10 @@
+# Description: Global regions test.
+# Status: ok
+# Output hash: e661246caef9b2a5fa5a96b9d75c0542d2e0e655de9d63d755aff01cd3b4ceba
+@use "gmt"
+
+r1=Region("global");
+r2=Region("global360");
+r3=Region("global180");
+
+print(r1,r1.xb,r1.xe,r2,r2.xb,r2.xe,r3,r3.xb,r3.xe);

tests/GMTRegion2

@@ -0,0 +1,9 @@
+# Description: Test sequential form of Region.
+# Status: ok
+# Output hash: a8006abe2c42b9e34c692ab88cf2f869ad6a01d1f32e6da842c1320f0d253d1c
+@use "gmt"
+
+r1=Region("10:30",20.5,-10.5,100,"bbox");
+r2=Region("10:30",-10.5,20.5,100);
+
+print(r1,r2,r1.yb,r2.yb);

tests/GMTRegion3

@@ -0,0 +1,13 @@
+# Description: Check named pairs form of Region.
+# Status: ok
+# Output hash: cf4acbeb2da3156fe52f1f374d4dc83a1aa0ee129a8aa2b1975ec828dd23cabe
+@use "gmt"
+
+r=Region("10:30",-10.5,20.5,100);
+r1=Region(r,type="bbox");
+r2=Region(r,type="global180");
+r3=Region(r,ye=80.5);
+l=(xb=r.xb.n-0.5,(xe=20+r.xb.n-10,yb=-10),(ye="11:30:28"));
+rr=Region(l, type="bbox");
+
+print(r,r1,r2,r3,rr);

tests/GMTRegion_e1

@@ -0,0 +1,8 @@
+# Description: Check string argument in sequential form of Region.
+# Status: fail
+# Output hash: 8421e39ea376a83938c3d79d803749f038ecd493a490228add4b8d179d4e8f75
+@use "gmt"
+
+r=Region("10:30",-10.5,20.5,100,"global");
+
+print(r);