Graphviz 13.0.0~dev.20250424.1043
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Data Structures | Macros | Functions | Variables
gv2gml.c File Reference

DOT-GML converter. More...

#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <getopt.h>
#include <cgraph/cgraph.h>
#include <cgraph/ingraphs.h>
#include <util/exit.h>
#include <util/gv_ctype.h>
#include <util/streq.h>
#include <util/strview.h>
#include <util/tokenize.h>
#include <util/unreachable.h>
#include <util/xml.h>
#include "openFile.h"
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Data Structures

struct  node_attrs
 
struct  edge_attrs
 
struct  Local_Agnodeinfo_t
 

Macros

#define POS_SET   (1<<0)
 
#define W_SET   (1<<1)
 
#define H_SET   (1<<2)
 
#define INVIS   (1<<3)
 
#define FILL   (1<<4)
 
#define LINE   (1<<5)
 
#define DASH   (1<<6)
 
#define DOT   (1<<7)
 
#define BOLD   (1<<8)
 
#define ID(n)   (((Local_Agnodeinfo_t*)(n->base.data))->id)
 

Functions

static void indent (int ix)
 
static bool isNumber (char *s)
 Return true if input string is number.
 
static int parseStyle (char *s)
 Simple implementation for parsing style attribute.
 
static void emitInt (char *name, int value, int ix)
 
static void emitReal (char *name, double value, int ix)
 
static void emitPoint (double x, double y, int ix)
 
static char * skipWS (char *s)
 
static char * readPoint (char *s, double *xp, double *yp)
 
static char * arrowEnd (char *s0, char *pfx, int *fp, double *xp, double *yp)
 
static void emitSpline (char *s, int ix)
 
static int put (void *stream, const char *s)
 
static int xml_puts (FILE *stream, const char *s)
 
static void emitAttr (char *name, char *value, int ix)
 
static void emitNodeAttrs (Agraph_t *G, Agnode_t *np, int ix)
 
static void emitNode (Agraph_t *G, Agnode_t *n)
 
static void emitEdgeAttrs (Agraph_t *G, Agedge_t *ep, int ix)
 
static void emitEdge (Agraph_t *G, Agedge_t *e)
 
static void emitGraphAttrs (Agraph_t *G)
 
static void gv_to_gml (Agraph_t *G)
 
static void usage (int v)
 
static char * cmdName (char *cmd)
 
static void initargs (int argc, char **argv)
 
int main (int argc, char **argv)
 

Variables

static FILE * outFile
 
static char * CmdName
 
static char ** Files
 
static uint64_t id
 
static bool yworks
 use yWorks.com variant of GML?
 
static char * useString
 

Macro Definition Documentation

◆ BOLD

#define BOLD   (1<<8)

Definition at line 51 of file gv2gml.c.

◆ DASH

#define DASH   (1<<6)

Definition at line 49 of file gv2gml.c.

◆ DOT

#define DOT   (1<<7)

Definition at line 50 of file gv2gml.c.

◆ FILL

#define FILL   (1<<4)

Definition at line 47 of file gv2gml.c.

◆ H_SET

#define H_SET   (1<<2)

Definition at line 45 of file gv2gml.c.

◆ ID

#define ID (   n)    (((Local_Agnodeinfo_t*)(n->base.data))->id)

Definition at line 92 of file gv2gml.c.

◆ INVIS

#define INVIS   (1<<3)

Definition at line 46 of file gv2gml.c.

◆ LINE

#define LINE   (1<<5)

Definition at line 48 of file gv2gml.c.

◆ POS_SET

#define POS_SET   (1<<0)

Definition at line 43 of file gv2gml.c.

◆ W_SET

#define W_SET   (1<<1)

Definition at line 44 of file gv2gml.c.

Function Documentation

◆ arrowEnd()

static char * arrowEnd ( char *  s0,
char *  pfx,
int *  fp,
double *  xp,
double *  yp 
)
static

Definition at line 171 of file gv2gml.c.

References graphviz_exit(), NULL, readPoint(), and skipWS().

Referenced by emitSpline().

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◆ cmdName()

static char * cmdName ( char *  cmd)
static

Definition at line 646 of file gv2gml.c.

References cmd.

Referenced by initargs().

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◆ emitAttr()

static void emitAttr ( char *  name,
char *  value,
int  ix 
)
static

Definition at line 218 of file gv2gml.c.

References indent(), isNumber(), outFile, and xml_puts().

Referenced by emitEdgeAttrs(), emitGraphAttrs(), and emitNodeAttrs().

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◆ emitEdge()

static void emitEdge ( Agraph_t *  G,
Agedge_t *  e 
)
static

Definition at line 589 of file gv2gml.c.

References aghead, AGSEQ, agtail, emitEdgeAttrs(), G, ID, and outFile.

Referenced by gv_to_gml().

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◆ emitEdgeAttrs()

static void emitEdgeAttrs ( Agraph_t *  G,
Agedge_t *  ep,
int  ix 
)
static

Definition at line 430 of file gv2gml.c.

References AGEDGE, agnxtattr(), agxget(), edge_attrs::arrow, edge_attrs::arrowhead, edge_attrs::arrowtail, BOLD, DASH, DOT, emitAttr(), emitInt(), emitSpline(), edge_attrs::fill, edge_attrs::flags, edge_attrs::fontColor, edge_attrs::fontName, edge_attrs::fontSize, G, INVIS, label(), LINE, s::name, NULL, outFile, parseStyle(), edge_attrs::pos, streq(), edge_attrs::width, and yworks.

Referenced by emitEdge().

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◆ emitGraphAttrs()

static void emitGraphAttrs ( Agraph_t *  G)
static

Definition at line 597 of file gv2gml.c.

References agnxtattr(), AGRAPH, agxget(), emitAttr(), G, s::name, and NULL.

Referenced by gv_to_gml().

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◆ emitInt()

static void emitInt ( char *  name,
int  value,
int  ix 
)
static

Definition at line 131 of file gv2gml.c.

References indent(), and outFile.

Referenced by emitEdgeAttrs(), and emitNodeAttrs().

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◆ emitNode()

static void emitNode ( Agraph_t *  G,
Agnode_t *  n 
)
static

Definition at line 415 of file gv2gml.c.

References agbindrec(), agnameof(), emitNodeAttrs(), G, ID, and outFile.

Referenced by gv_to_gml().

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◆ emitNodeAttrs()

static void emitNodeAttrs ( Agraph_t *  G,
Agnode_t *  np,
int  ix 
)
static

Definition at line 234 of file gv2gml.c.

References agnameof(), AGNODE, agnxtattr(), agxget(), DASH, DOT, emitAttr(), emitInt(), emitReal(), FILL, node_attrs::fill, node_attrs::flags, node_attrs::fontColor, node_attrs::fontName, node_attrs::fontSize, G, node_attrs::h, H_SET, node_attrs::image, INVIS, label(), LINE, s::name, NULL, outFile, node_attrs::outline, node_attrs::outlineStyle, parseStyle(), POS_SET, streq(), node_attrs::type, node_attrs::w, W_SET, node_attrs::width, node_attrs::x, node_attrs::y, and yworks.

Referenced by emitNode().

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◆ emitPoint()

static void emitPoint ( double  x,
double  y,
int  ix 
)
static

Definition at line 141 of file gv2gml.c.

References indent(), and outFile.

Referenced by emitSpline().

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◆ emitReal()

static void emitReal ( char *  name,
double  value,
int  ix 
)
static

Definition at line 136 of file gv2gml.c.

References indent(), and outFile.

Referenced by emitNodeAttrs().

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◆ emitSpline()

static void emitSpline ( char *  s,
int  ix 
)
static

Definition at line 186 of file gv2gml.c.

References arrowEnd(), emitPoint(), indent(), outFile, and readPoint().

Referenced by emitEdgeAttrs().

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◆ gv_to_gml()

static void gv_to_gml ( Agraph_t *  G)
static

Definition at line 608 of file gv2gml.c.

References agfstnode(), agfstout(), agisdirected(), agnxtnode(), agnxtout(), emitEdge(), emitGraphAttrs(), emitNode(), G, and outFile.

Referenced by main().

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◆ indent()

static void indent ( int  ix)
static

Definition at line 94 of file gv2gml.c.

References outFile.

Referenced by emitAttr(), emitInt(), emitPoint(), emitReal(), and emitSpline().

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◆ initargs()

static void initargs ( int  argc,
char **  argv 
)
static

Definition at line 658 of file gv2gml.c.

References CmdName, cmdName(), Files, NULL, openFile(), outFile, UNREACHABLE, usage, and yworks.

Referenced by main().

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◆ isNumber()

static bool isNumber ( char *  s)
static

Definition at line 100 of file gv2gml.c.

References gv_isspace().

Referenced by emitAttr().

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◆ main()

int main ( int  argc,
char **  argv 
)

Definition at line 701 of file gv2gml.c.

References agclose(), Files, G, graphviz_exit(), gv_to_gml(), initargs(), newIngraph(), nextGraph(), outFile, and prev.

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◆ parseStyle()

static int parseStyle ( char *  s)
static

Definition at line 113 of file gv2gml.c.

References BOLD, DASH, DOT, FILL, flags, INVIS, LINE, strview_str_eq(), tok(), tok_end(), tok_get(), and tok_next().

Referenced by emitEdgeAttrs(), and emitNodeAttrs().

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◆ put()

static int put ( void *  stream,
const char *  s 
)
inlinestatic

Definition at line 208 of file gv2gml.c.

Referenced by xml_puts().

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◆ readPoint()

static char * readPoint ( char *  s,
double *  xp,
double *  yp 
)
static

Definition at line 156 of file gv2gml.c.

References NULL, and skipWS().

Referenced by arrowEnd(), and emitSpline().

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◆ skipWS()

static char * skipWS ( char *  s)
static

Definition at line 147 of file gv2gml.c.

References gv_isspace().

Referenced by arrowEnd(), and readPoint().

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◆ usage()

static void usage ( int  v)
static

Definition at line 640 of file gv2gml.c.

References CmdName, graphviz_exit(), and useString.

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◆ xml_puts()

static int xml_puts ( FILE *  stream,
const char *  s 
)
inlinestatic

Definition at line 213 of file gv2gml.c.

References xml_flags_t::dash, flags, gv_xml_escape(), and put().

Referenced by emitAttr().

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Variable Documentation

◆ CmdName

char* CmdName
static

Definition at line 38 of file gv2gml.c.

Referenced by initargs(), and usage().

◆ Files

char** Files
static

Definition at line 39 of file gv2gml.c.

Referenced by initargs(), and main().

◆ id

uint64_t id
static

Definition at line 40 of file gv2gml.c.

Referenced by activate(), agfindedge_by_id(), agfindnode_by_name(), agfindsubg_by_id(), agfreeid(), aginternalmapinsert(), agnewsym(), agnode(), agsubg(), agsubnodeideq(), attr_list_add(), attr_list_new(), clearGrid(), compOf(), dot_sameports(), find_isym(), getObjId(), initAnchor(), initObjMapData(), loadAttrs(), LoadPlugins(), localsubg(), newedge(), newnode(), node_data_new(), node_set_hash(), populate_data(), remove_poly(), reset_attr_list_widgets(), setErrorId(), SparseMatrix_multiply3(), SparseStressMajorizationSmoother_new(), SpringSmoother_new(), StressMajorizationSmoother2_new(), StressMajorizationSmoother_smooth(), svg_gradstyle(), svg_rgradstyle(), and weak().

◆ outFile

FILE* outFile
static

Definition at line 37 of file gv2gml.c.

Referenced by emitAttr(), emitEdge(), emitEdgeAttrs(), emitInt(), emitNode(), emitNodeAttrs(), emitPoint(), emitReal(), emitSpline(), gv_to_gml(), indent(), initargs(), and main().

◆ useString

char* useString
static
Initial value:
= "Usage: %s [-y] [-?] <files>\n\
-o<file> : output to <file> (stdout)\n\
-y : output yWorks.com GML variant\n\
-? - print usage\n\
If no files are specified, stdin is used\n"

Definition at line 634 of file gv2gml.c.

Referenced by usage().

◆ yworks

bool yworks
static

Definition at line 41 of file gv2gml.c.

Referenced by emitEdgeAttrs(), emitNodeAttrs(), and initargs().