diff options
| -rw-r--r-- | out.c | 55 |
1 files changed, 12 insertions, 43 deletions
@@ -20,8 +20,6 @@ #include <sys/types.h> #include <assert.h> -#include <ctype.h> -#include <stdio.h> #include <stdlib.h> #include <string.h> #include <time.h> @@ -39,53 +37,23 @@ static void tblcalc_number(struct rofftbl *, struct roffcol *, /* - * Convert a `scaling unit' to a consistent form, or fail. Scaling - * units are documented in groff.7, mdoc.7, man.7. + * Parse the *src string and store a scaling unit into *dst. + * If the string doesn't specify the unit, use the default. + * If no default is specified, fail. + * Return 1 on success and 0 on failure. */ int a2roffsu(const char *src, struct roffsu *dst, enum roffscale def) { - char buf[BUFSIZ], hasd; - int i; + char *endptr; + double scale; enum roffscale unit; - if ('\0' == *src) - return(0); - - i = hasd = 0; - - switch (*src) { - case '+': - src++; - break; - case '-': - buf[i++] = *src++; - break; - default: - break; - } - - if ('\0' == *src) - return(0); - - while (i < BUFSIZ) { - if ( ! isdigit((unsigned char)*src)) { - if ('.' != *src) - break; - else if (hasd) - break; - else - hasd = 1; - } - buf[i++] = *src++; - } - - if (BUFSIZ == i || (*src && *(src + 1))) + scale = strtod(src, &endptr); + if (endptr == src || (endptr[0] != '\0' && endptr[1] != '\0')) return(0); - buf[i] = '\0'; - - switch (*src) { + switch (*endptr) { case 'c': unit = SCALE_CM; break; @@ -126,8 +94,9 @@ a2roffsu(const char *src, struct roffsu *dst, enum roffscale def) } /* FIXME: do this in the caller. */ - if ((dst->scale = atof(buf)) < 0.0) - dst->scale = 0.0; + if (scale < 0.0) + scale = 0.0; + dst->scale = scale; dst->unit = unit; return(1); } |