version 1.4, 2009/10/09 06:54:11 |
version 1.19, 2010/07/18 23:06:18 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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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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/* |
/* |
* 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 56 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 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 120 a2roffsu(const char *src, struct roffsu *dst) |
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Line 119 a2roffsu(const char *src, struct roffsu *dst) |
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if ((dst->scale = atof(buf)) < 0) |
if ((dst->scale = atof(buf)) < 0) |
dst->scale = 0; |
dst->scale = 0; |
dst->unit = unit; |
dst->unit = unit; |
dst->pt = hasd; |
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return(1); |
return(1); |
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} |
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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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int |
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a2roffdeco(enum roffdeco *d, const char **word, size_t *sz) |
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{ |
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int i, j, lim; |
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char term, c; |
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const char *wp; |
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*d = DECO_NONE; |
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lim = i = 0; |
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term = '\0'; |
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wp = *word; |
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switch ((c = wp[i++])) { |
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case ('('): |
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*d = DECO_SPECIAL; |
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lim = 2; |
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break; |
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case ('F'): |
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/* FALLTHROUGH */ |
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case ('f'): |
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*d = 'F' == c ? DECO_FFONT : DECO_FONT; |
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switch (wp[i++]) { |
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case ('('): |
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lim = 2; |
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break; |
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case ('['): |
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term = ']'; |
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break; |
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case ('3'): |
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/* FALLTHROUGH */ |
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case ('B'): |
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*d = DECO_BOLD; |
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return(i); |
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case ('2'): |
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/* FALLTHROUGH */ |
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case ('I'): |
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*d = DECO_ITALIC; |
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return(i); |
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case ('P'): |
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*d = DECO_PREVIOUS; |
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return(i); |
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case ('1'): |
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/* FALLTHROUGH */ |
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case ('R'): |
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*d = DECO_ROMAN; |
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return(i); |
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default: |
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i--; |
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lim = 1; |
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break; |
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} |
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break; |
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case ('*'): |
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*d = DECO_RESERVED; |
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switch (wp[i++]) { |
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case ('('): |
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lim = 2; |
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break; |
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case ('['): |
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term = ']'; |
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break; |
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default: |
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i--; |
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lim = 1; |
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break; |
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} |
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break; |
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case ('M'): |
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/* FALLTHROUGH */ |
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case ('m'): |
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switch (wp[i++]) { |
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case ('('): |
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lim = 2; |
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break; |
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case ('['): |
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term = ']'; |
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break; |
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default: |
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i--; |
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lim = 1; |
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break; |
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} |
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break; |
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case ('s'): |
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if ('+' == wp[i] || '-' == wp[i]) |
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i++; |
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j = ('s' != wp[i - 1]); |
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switch (wp[i++]) { |
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case ('('): |
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lim = 2; |
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break; |
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case ('['): |
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term = ']'; |
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break; |
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case ('\''): |
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term = '\''; |
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break; |
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default: |
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i--; |
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lim = 1; |
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break; |
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} |
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if ('+' == wp[i] || '-' == wp[i]) { |
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if (j++) |
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return(i); |
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i++; |
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} |
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if (0 == j) |
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return(i); |
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break; |
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case ('['): |
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*d = DECO_SPECIAL; |
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term = ']'; |
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break; |
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case ('c'): |
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*d = DECO_NOSPACE; |
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return(i); |
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default: |
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*d = DECO_SPECIAL; |
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i--; |
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lim = 1; |
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break; |
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} |
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assert(term || lim); |
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*word = &wp[i]; |
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if (term) { |
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j = i; |
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while (wp[i] && wp[i] != term) |
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i++; |
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if ('\0' == wp[i]) { |
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*d = DECO_NONE; |
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return(i); |
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} |
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assert(i >= j); |
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*sz = (size_t)(i - j); |
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return(i + 1); |
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} |
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assert(lim > 0); |
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*sz = (size_t)lim; |
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for (j = 0; wp[i] && j < lim; j++) |
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i++; |
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if (j < lim) |
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*d = DECO_NONE; |
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return(i); |
} |
} |