version 1.4, 2009/10/09 06:54:11 |
version 1.5, 2009/10/18 19:02:10 |
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/* |
/* |
* Convert a `scaling unit' to a consistent form, or fail. Scaling |
* Convert a `scaling unit' to a consistent form, or fail. Scaling |
* units are documented in groff.7, which stipulates the following: |
* units are documented in groff.7, mdoc.7, man.7. |
* |
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* (1) A scaling unit is a signed/unsigned integer/float with or |
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* without a unit. |
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* |
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* (2) The following units exist: |
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* c Centimeter |
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* i Inch |
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* P Pica = 1/6 inch |
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* p Point = 1/72 inch |
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* m Em = the font size in points (width of letter m) |
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* M 100th of an Em |
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* n En = Em/2 |
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* u Basic unit for actual output device |
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* v Vertical line space in basic units scaled point = |
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* 1/sizescale of a point (defined in font DESC file) |
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* f Scale by 65536. |
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*/ |
*/ |
int |
int |
a2roffsu(const char *src, struct roffsu *dst) |
a2roffsu(const char *src, struct roffsu *dst, enum roffscale def) |
{ |
{ |
char buf[BUFSIZ], hasd; |
char buf[BUFSIZ], hasd; |
int i; |
int i; |
enum roffscale unit; |
enum roffscale unit; |
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if ('\0' == *src) |
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return(0); |
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i = hasd = 0; |
i = hasd = 0; |
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switch (*src) { |
switch (*src) { |
Line 63 a2roffsu(const char *src, struct roffsu *dst) |
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Line 50 a2roffsu(const char *src, struct roffsu *dst) |
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break; |
break; |
} |
} |
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if ('\0' == *src) |
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return(0); |
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while (i < BUFSIZ) { |
while (i < BUFSIZ) { |
if ( ! isdigit((u_char)*src)) { |
if ( ! isdigit((u_char)*src)) { |
if ('.' != *src) |
if ('.' != *src) |
Line 103 a2roffsu(const char *src, struct roffsu *dst) |
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Line 93 a2roffsu(const char *src, struct roffsu *dst) |
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unit = SCALE_EM; |
unit = SCALE_EM; |
break; |
break; |
case ('\0'): |
case ('\0'): |
/* FALLTHROUGH */ |
if (SCALE_MAX == def) |
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return(0); |
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unit = SCALE_BU; |
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break; |
case ('u'): |
case ('u'): |
unit = SCALE_BU; |
unit = SCALE_BU; |
break; |
break; |