version 1.3, 2009/10/07 12:35:24 |
version 1.7, 2009/10/22 18:59:00 |
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*/ |
*/ |
#include <sys/types.h> |
#include <sys/types.h> |
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#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
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#include <string.h> |
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#include <time.h> |
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#include "out.h" |
#include "out.h" |
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#ifdef __linux__ |
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extern size_t strlcat(char *, const char *, size_t); |
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#endif |
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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], *p; |
char buf[BUFSIZ], hasd; |
int i; |
int i; |
enum roffscale unit; |
enum roffscale unit; |
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for (p = buf, i = 0; i < BUFSIZ && isdigit((u_char)*src); i++) |
if ('\0' == *src) |
*p++ = *src++; |
return(0); |
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i = hasd = 0; |
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switch (*src) { |
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case ('+'): |
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src++; |
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break; |
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case ('-'): |
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buf[i++] = *src++; |
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break; |
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default: |
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break; |
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} |
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if ('\0' == *src) |
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return(0); |
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while (i < BUFSIZ) { |
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if ( ! isdigit((u_char)*src)) { |
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if ('.' != *src) |
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break; |
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else if (hasd) |
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break; |
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else |
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hasd = 1; |
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} |
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buf[i++] = *src++; |
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} |
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if (BUFSIZ == i || (*src && *(src + 1))) |
if (BUFSIZ == i || (*src && *(src + 1))) |
return(0); |
return(0); |
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*p = '\0'; |
buf[i] = '\0'; |
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switch (*src) { |
switch (*src) { |
case ('c'): |
case ('c'): |
Line 81 a2roffsu(const char *src, struct roffsu *dst) |
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Line 99 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; |
Line 95 a2roffsu(const char *src, struct roffsu *dst) |
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Line 116 a2roffsu(const char *src, struct roffsu *dst) |
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return(0); |
return(0); |
} |
} |
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if ((dst->scale = atoi(buf)) < 0) |
if ((dst->scale = atof(buf)) < 0) |
dst->scale = 0; |
dst->scale = 0; |
dst->unit = unit; |
dst->unit = unit; |
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dst->pt = hasd; |
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return(1); |
return(1); |
} |
} |
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/* |
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* Correctly writes the time in nroff form, which differs from standard |
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* form in that a space isn't printed in lieu of the extra %e field for |
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* single-digit dates. |
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*/ |
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void |
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time2a(time_t t, char *dst, size_t sz) |
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{ |
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struct tm tm; |
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char buf[5]; |
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char *p; |
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size_t nsz; |
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assert(sz > 1); |
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localtime_r(&t, &tm); |
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p = dst; |
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nsz = 0; |
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dst[0] = '\0'; |
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if (0 == (nsz = strftime(p, sz, "%B ", &tm))) |
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return; |
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p += (int)nsz; |
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sz -= nsz; |
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if (0 == strftime(buf, sizeof(buf), "%e, ", &tm)) |
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return; |
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nsz = strlcat(p, buf + (' ' == buf[0] ? 1 : 0), sz); |
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if (nsz >= sz) |
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return; |
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p += (int)nsz; |
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sz -= nsz; |
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(void)strftime(p, sz, "%Y", &tm); |
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} |
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