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Allow custom XML parsers #157

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Allow custom XML parsers #157

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18 changes: 16 additions & 2 deletions src/nanosvg.h
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Original file line number Diff line number Diff line change
Expand Up @@ -162,13 +162,22 @@ typedef struct NSVGimage
NSVGshape* shapes; // Linked list of shapes in the image.
} NSVGimage;

typedef int (*NSVGparseXML)(char* input,
void (*startelCb)(void* ud, const char* el, const char** attr),
void (*endelCb)(void* ud, const char* el),
void (*contentCb)(void* ud, const char* s),
void* ud);

// Parses SVG file from a file, returns SVG image as paths.
NSVGimage* nsvgParseFromFile(const char* filename, const char* units, float dpi);

// Parses SVG file from a null terminated string, returns SVG image as paths.
// Important note: changes the string.
NSVGimage* nsvgParse(char* input, const char* units, float dpi);

// Like nsvgParse, but using the given custom XML parser.
NSVGimage* nsvgParseEx(char* input, const char* units, float dpi, NSVGparseXML parser);

// Duplicates a path.
NSVGpath* nsvgDuplicatePath(NSVGpath* p);

Expand Down Expand Up @@ -2873,7 +2882,7 @@ static void nsvg__scaleToViewbox(NSVGparser* p, const char* units)
}
}

NSVGimage* nsvgParse(char* input, const char* units, float dpi)
NSVGimage* nsvgParseEx(char* input, const char* units, float dpi, NSVGparseXML parse)
{
NSVGparser* p;
NSVGimage* ret = 0;
Expand All @@ -2884,7 +2893,7 @@ NSVGimage* nsvgParse(char* input, const char* units, float dpi)
}
p->dpi = dpi;

nsvg__parseXML(input, nsvg__startElement, nsvg__endElement, nsvg__content, p);
parse(input, nsvg__startElement, nsvg__endElement, nsvg__content, p);

// Scale to viewBox
nsvg__scaleToViewbox(p, units);
Expand All @@ -2897,6 +2906,11 @@ NSVGimage* nsvgParse(char* input, const char* units, float dpi)
return ret;
}

NSVGimage* nsvgParse(char* input, const char* units, float dpi)
{
return nsvgParseEx(input, units, dpi, nsvg__parseXML);
}

NSVGimage* nsvgParseFromFile(const char* filename, const char* units, float dpi)
{
FILE* fp = NULL;
Expand Down