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Annotation of src/usr.bin/mandoc/out.c, Revision 1.1

1.1     ! schwarze    1: /*     $Id: out.c,v 1.5 2009/10/18 19:02:10 kristaps Exp $ */
        !             2: /*
        !             3:  * Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>
        !             4:  *
        !             5:  * Permission to use, copy, modify, and distribute this software for any
        !             6:  * purpose with or without fee is hereby granted, provided that the above
        !             7:  * copyright notice and this permission notice appear in all copies.
        !             8:  *
        !             9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            16:  */
        !            17: #include <sys/types.h>
        !            18:
        !            19: #include <ctype.h>
        !            20: #include <stdio.h>
        !            21: #include <stdlib.h>
        !            22:
        !            23: #include "out.h"
        !            24:
        !            25:
        !            26: /*
        !            27:  * Convert a `scaling unit' to a consistent form, or fail.  Scaling
        !            28:  * units are documented in groff.7, mdoc.7, man.7.
        !            29:  */
        !            30: int
        !            31: a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
        !            32: {
        !            33:        char             buf[BUFSIZ], hasd;
        !            34:        int              i;
        !            35:        enum roffscale   unit;
        !            36:
        !            37:        if ('\0' == *src)
        !            38:                return(0);
        !            39:
        !            40:        i = hasd = 0;
        !            41:
        !            42:        switch (*src) {
        !            43:        case ('+'):
        !            44:                src++;
        !            45:                break;
        !            46:        case ('-'):
        !            47:                buf[i++] = *src++;
        !            48:                break;
        !            49:        default:
        !            50:                break;
        !            51:        }
        !            52:
        !            53:        if ('\0' == *src)
        !            54:                return(0);
        !            55:
        !            56:        while (i < BUFSIZ) {
        !            57:                if ( ! isdigit((u_char)*src)) {
        !            58:                        if ('.' != *src)
        !            59:                                break;
        !            60:                        else if (hasd)
        !            61:                                break;
        !            62:                        else
        !            63:                                hasd = 1;
        !            64:                }
        !            65:                buf[i++] = *src++;
        !            66:        }
        !            67:
        !            68:        if (BUFSIZ == i || (*src && *(src + 1)))
        !            69:                return(0);
        !            70:
        !            71:        buf[i] = '\0';
        !            72:
        !            73:        switch (*src) {
        !            74:        case ('c'):
        !            75:                unit = SCALE_CM;
        !            76:                break;
        !            77:        case ('i'):
        !            78:                unit = SCALE_IN;
        !            79:                break;
        !            80:        case ('P'):
        !            81:                unit = SCALE_PC;
        !            82:                break;
        !            83:        case ('p'):
        !            84:                unit = SCALE_PT;
        !            85:                break;
        !            86:        case ('f'):
        !            87:                unit = SCALE_FS;
        !            88:                break;
        !            89:        case ('v'):
        !            90:                unit = SCALE_VS;
        !            91:                break;
        !            92:        case ('m'):
        !            93:                unit = SCALE_EM;
        !            94:                break;
        !            95:        case ('\0'):
        !            96:                if (SCALE_MAX == def)
        !            97:                        return(0);
        !            98:                unit = SCALE_BU;
        !            99:                break;
        !           100:        case ('u'):
        !           101:                unit = SCALE_BU;
        !           102:                break;
        !           103:        case ('M'):
        !           104:                unit = SCALE_MM;
        !           105:                break;
        !           106:        case ('n'):
        !           107:                unit = SCALE_EN;
        !           108:                break;
        !           109:        default:
        !           110:                return(0);
        !           111:        }
        !           112:
        !           113:        if ((dst->scale = atof(buf)) < 0)
        !           114:                dst->scale = 0;
        !           115:        dst->unit = unit;
        !           116:        dst->pt = hasd;
        !           117:
        !           118:        return(1);
        !           119: }