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author | Kristaps Dzonsons <kristaps@bsd.lv> | 2009-10-07 12:35:23 +0000 |
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committer | Kristaps Dzonsons <kristaps@bsd.lv> | 2009-10-07 12:35:23 +0000 |
commit | b1d01845c639c88ae33f1eacfd22f93f7b6c10d9 (patch) | |
tree | 66e409a37178009108cb0878b6ed8868d675fbcb /out.c | |
parent | 079d090f0a85bd902f66ca40325bf416797af9b9 (diff) | |
download | mandoc-b1d01845c639c88ae33f1eacfd22f93f7b6c10d9.tar.gz |
Additions to -Tman -Thtml: all structural components tested & in place.
Fitted both -Thtml with handling of arbitrary vertical and horizontal scaling units (see groff(7)). Undocumented until fitted into -Tascii (next release).
Diffstat (limited to 'out.c')
-rw-r--r-- | out.c | 102 |
1 files changed, 102 insertions, 0 deletions
@@ -0,0 +1,102 @@ +/* $Id$ */ +/* + * Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +#include <sys/types.h> + +#include <ctype.h> +#include <stdio.h> +#include <stdlib.h> + +#include "out.h" + + +/* + * Convert a `scaling unit' to a consistent form, or fail. Scaling + * units are documented in groff.7, which stipulates the following: + * + * (1) A scaling unit is a signed/unsigned integer/float with or + * without a unit. + * + * (2) The following units exist: + * c Centimeter + * i Inch + * P Pica = 1/6 inch + * p Point = 1/72 inch + * m Em = the font size in points (width of letter m) + * M 100th of an Em + * n En = Em/2 + * u Basic unit for actual output device + * v Vertical line space in basic units scaled point = + * 1/sizescale of a point (defined in font DESC file) + * f Scale by 65536. + */ +int +a2roffsu(const char *src, struct roffsu *dst) +{ + char buf[BUFSIZ], *p; + int i; + enum roffscale unit; + + for (p = buf, i = 0; i < BUFSIZ && isdigit((u_char)*src); i++) + *p++ = *src++; + + if (BUFSIZ == i || (*src && *(src + 1))) + return(0); + + *p = '\0'; + + switch (*src) { + case ('c'): + unit = SCALE_CM; + break; + case ('i'): + unit = SCALE_IN; + break; + case ('P'): + unit = SCALE_PC; + break; + case ('p'): + unit = SCALE_PT; + break; + case ('f'): + unit = SCALE_FS; + break; + case ('v'): + unit = SCALE_VS; + break; + case ('m'): + unit = SCALE_EM; + break; + case ('\0'): + /* FALLTHROUGH */ + case ('u'): + unit = SCALE_BU; + break; + case ('M'): + unit = SCALE_MM; + break; + case ('n'): + unit = SCALE_EN; + break; + default: + return(0); + } + + if ((dst->scale = atoi(buf)) < 0) + dst->scale = 0; + dst->unit = unit; + return(1); +} |