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Annotation of mandoc/mdoc.c, Revision 1.37

1.37    ! kristaps    1: /* $Id: mdoc.c,v 1.36 2009/01/19 17:02:58 kristaps Exp $ */
1.1       kristaps    2: /*
                      3:  * Copyright (c) 2008 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
                      7:  * above copyright notice and this permission notice appear in all
                      8:  * copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
                     11:  * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
                     12:  * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
                     13:  * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
                     14:  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
                     15:  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
                     16:  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
                     17:  * PERFORMANCE OF THIS SOFTWARE.
                     18:  */
                     19: #include <assert.h>
                     20: #include <ctype.h>
                     21: #include <err.h>
                     22: #include <stdarg.h>
                     23: #include <stdlib.h>
                     24: #include <stdio.h>
                     25: #include <string.h>
                     26:
                     27: #include "private.h"
                     28:
                     29: const  char *const __mdoc_macronames[MDOC_MAX] = {
                     30:        "\\\"",         "Dd",           "Dt",           "Os",
                     31:        "Sh",           "Ss",           "Pp",           "D1",
                     32:        "Dl",           "Bd",           "Ed",           "Bl",
                     33:        "El",           "It",           "Ad",           "An",
                     34:        "Ar",           "Cd",           "Cm",           "Dv",
                     35:        "Er",           "Ev",           "Ex",           "Fa",
                     36:        "Fd",           "Fl",           "Fn",           "Ft",
                     37:        "Ic",           "In",           "Li",           "Nd",
                     38:        "Nm",           "Op",           "Ot",           "Pa",
                     39:        "Rv",           "St",           "Va",           "Vt",
                     40:        /* LINTED */
                     41:        "Xr",           "\%A",          "\%B",          "\%D",
                     42:        /* LINTED */
                     43:        "\%I",          "\%J",          "\%N",          "\%O",
                     44:        /* LINTED */
                     45:        "\%P",          "\%R",          "\%T",          "\%V",
                     46:        "Ac",           "Ao",           "Aq",           "At",
                     47:        "Bc",           "Bf",           "Bo",           "Bq",
                     48:        "Bsx",          "Bx",           "Db",           "Dc",
                     49:        "Do",           "Dq",           "Ec",           "Ef",
                     50:        "Em",           "Eo",           "Fx",           "Ms",
                     51:        "No",           "Ns",           "Nx",           "Ox",
                     52:        "Pc",           "Pf",           "Po",           "Pq",
                     53:        "Qc",           "Ql",           "Qo",           "Qq",
                     54:        "Re",           "Rs",           "Sc",           "So",
                     55:        "Sq",           "Sm",           "Sx",           "Sy",
                     56:        "Tn",           "Ux",           "Xc",           "Xo",
                     57:        "Fo",           "Fc",           "Oo",           "Oc",
                     58:        "Bk",           "Ek",           "Bt",           "Hf",
                     59:        "Fr",           "Ud",
                     60:        };
                     61:
                     62: const  char *const __mdoc_argnames[MDOC_ARG_MAX] = {
                     63:        "split",                "nosplit",              "ragged",
                     64:        "unfilled",             "literal",              "file",
                     65:        "offset",               "bullet",               "dash",
                     66:        "hyphen",               "item",                 "enum",
                     67:        "tag",                  "diag",                 "hang",
                     68:        "ohang",                "inset",                "column",
                     69:        "width",                "compact",              "std",
                     70:        "p1003.1-88",           "p1003.1-90",           "p1003.1-96",
                     71:        "p1003.1-2001",         "p1003.1-2004",         "p1003.1",
                     72:        "p1003.1b",             "p1003.1b-93",          "p1003.1c-95",
                     73:        "p1003.1g-2000",        "p1003.2-92",           "p1387.2-95",
                     74:        "p1003.2",              "p1387.2",              "isoC-90",
                     75:        "isoC-amd1",            "isoC-tcor1",           "isoC-tcor2",
                     76:        "isoC-99",              "ansiC",                "ansiC-89",
                     77:        "ansiC-99",             "ieee754",              "iso8802-3",
                     78:        "xpg3",                 "xpg4",                 "xpg4.2",
                     79:        "xpg4.3",               "xbd5",                 "xcu5",
                     80:        "xsh5",                 "xns5",                 "xns5.2d2.0",
                     81:        "xcurses4.2",           "susv2",                "susv3",
                     82:        "svid4",                "filled",               "words",
1.14      kristaps   83:        "emphasis",             "symbolic",
1.1       kristaps   84:        };
                     85:
                     86: const  struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
                     87:        { NULL, 0 }, /* \" */
1.37    ! kristaps   88:        { macro_constant, MDOC_PROLOGUE | MDOC_NOKEEP }, /* Dd */
        !            89:        { macro_constant, MDOC_PROLOGUE | MDOC_NOKEEP }, /* Dt */
        !            90:        { macro_constant, MDOC_PROLOGUE | MDOC_NOKEEP }, /* Os */
1.13      kristaps   91:        { macro_scoped, 0 }, /* Sh */
                     92:        { macro_scoped, 0 }, /* Ss */
1.5       kristaps   93:        { macro_text, 0 }, /* Pp */
1.19      kristaps   94:        { macro_scoped_line, MDOC_PARSED }, /* D1 */
                     95:        { macro_scoped_line, MDOC_PARSED }, /* Dl */
1.13      kristaps   96:        { macro_scoped, MDOC_EXPLICIT }, /* Bd */
1.29      kristaps   97:        { macro_scoped_close, MDOC_EXPLICIT }, /* Ed */
1.13      kristaps   98:        { macro_scoped, MDOC_EXPLICIT }, /* Bl */
1.29      kristaps   99:        { macro_scoped_close, MDOC_EXPLICIT }, /* El */
                    100:        { macro_scoped, MDOC_PARSED | MDOC_TABSEP}, /* It */
1.19      kristaps  101:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.32      kristaps  102:        { macro_text, MDOC_PARSED }, /* An */
1.19      kristaps  103:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.12      kristaps  104:        { macro_constant, MDOC_QUOTABLE }, /* Cd */
1.19      kristaps  105:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
                    106:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
                    107:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
                    108:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.13      kristaps  109:        { macro_constant, 0 }, /* Ex */
1.19      kristaps  110:        { macro_text, MDOC_CALLABLE | MDOC_QUOTABLE | MDOC_PARSED }, /* Fa */
1.13      kristaps  111:        { macro_constant, 0 }, /* Fd */
1.19      kristaps  112:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
                    113:        { macro_text, MDOC_CALLABLE | MDOC_QUOTABLE | MDOC_PARSED }, /* Fn */
1.32      kristaps  114:        { macro_text, MDOC_PARSED | MDOC_QUOTABLE }, /* Ft */
1.19      kristaps  115:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.13      kristaps  116:        { macro_constant, 0 }, /* In */
1.19      kristaps  117:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.10      kristaps  118:        { macro_constant, 0 }, /* Nd */
1.19      kristaps  119:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
                    120:        { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.13      kristaps  121:        { macro_obsolete, 0 }, /* Ot */
1.19      kristaps  122:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
1.13      kristaps  123:        { macro_constant, 0 }, /* Rv */
1.22      kristaps  124:        /* XXX - .St supposed to be (but isn't) callable. */
1.19      kristaps  125:        { macro_constant_delimited, MDOC_PARSED }, /* St */
                    126:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
                    127:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
                    128:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.23      kristaps  129:        { macro_constant, MDOC_QUOTABLE }, /* %A */
                    130:        { macro_constant, MDOC_QUOTABLE }, /* %B */
1.13      kristaps  131:        { macro_constant, MDOC_QUOTABLE }, /* %D */
1.23      kristaps  132:        { macro_constant, MDOC_QUOTABLE }, /* %I */
                    133:        { macro_constant, MDOC_QUOTABLE }, /* %J */
1.13      kristaps  134:        { macro_constant, MDOC_QUOTABLE }, /* %N */
                    135:        { macro_constant, MDOC_QUOTABLE }, /* %O */
                    136:        { macro_constant, MDOC_QUOTABLE }, /* %P */
                    137:        { macro_constant, MDOC_QUOTABLE }, /* %R */
1.23      kristaps  138:        { macro_constant, MDOC_QUOTABLE }, /* %T */
1.13      kristaps  139:        { macro_constant, MDOC_QUOTABLE }, /* %V */
1.29      kristaps  140:        { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
                    141:        { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
1.19      kristaps  142:        { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
1.34      kristaps  143:        { macro_constant_delimited, 0 }, /* At */
1.29      kristaps  144:        { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
1.16      kristaps  145:        { macro_scoped, MDOC_EXPLICIT }, /* Bf */
1.29      kristaps  146:        { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
1.19      kristaps  147:        { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
                    148:        { macro_constant_delimited, MDOC_PARSED }, /* Bsx */
                    149:        { macro_constant_delimited, MDOC_PARSED }, /* Bx */
1.13      kristaps  150:        { macro_constant, 0 }, /* Db */
1.29      kristaps  151:        { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
                    152:        { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
1.19      kristaps  153:        { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
1.29      kristaps  154:        { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
                    155:        { macro_scoped_close, MDOC_EXPLICIT }, /* Ef */
1.19      kristaps  156:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
1.29      kristaps  157:        { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
1.19      kristaps  158:        { macro_constant_delimited, MDOC_PARSED }, /* Fx */
                    159:        { macro_text, MDOC_PARSED }, /* Ms */
                    160:        { macro_constant_delimited, MDOC_CALLABLE | MDOC_PARSED }, /* No */
                    161:        { macro_constant_delimited, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
                    162:        { macro_constant_delimited, MDOC_PARSED }, /* Nx */
                    163:        { macro_constant_delimited, MDOC_PARSED }, /* Ox */
1.29      kristaps  164:        { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.32      kristaps  165:        { macro_constant_delimited, MDOC_PARSED }, /* Pf */
1.29      kristaps  166:        { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
1.19      kristaps  167:        { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
1.29      kristaps  168:        { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
1.19      kristaps  169:        { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
1.29      kristaps  170:        { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
1.19      kristaps  171:        { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
1.29      kristaps  172:        { macro_scoped_close, MDOC_EXPLICIT }, /* Re */
1.13      kristaps  173:        { macro_scoped, MDOC_EXPLICIT }, /* Rs */
1.29      kristaps  174:        { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
                    175:        { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
1.19      kristaps  176:        { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
1.13      kristaps  177:        { macro_constant, 0 }, /* Sm */
1.19      kristaps  178:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
                    179:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
                    180:        { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
                    181:        { macro_constant_delimited, MDOC_PARSED }, /* Ux */
1.29      kristaps  182:        { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
                    183:        { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.19      kristaps  184:        /* XXX - .Fo supposed to be (but isn't) callable. */
                    185:        { macro_scoped, MDOC_EXPLICIT | MDOC_PARSED }, /* Fo */
                    186:        /* XXX - .Fc supposed to be (but isn't) callable. */
1.29      kristaps  187:        { macro_scoped_close, MDOC_EXPLICIT | MDOC_PARSED }, /* Fc */
                    188:        { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
                    189:        { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
1.17      kristaps  190:        { macro_scoped, MDOC_EXPLICIT }, /* Bk */
1.29      kristaps  191:        { macro_scoped_close, MDOC_EXPLICIT }, /* Ek */
1.9       kristaps  192:        { macro_constant, 0 }, /* Bt */
1.10      kristaps  193:        { macro_constant, 0 }, /* Hf */
1.12      kristaps  194:        { macro_obsolete, 0 }, /* Fr */
1.9       kristaps  195:        { macro_constant, 0 }, /* Ud */
1.1       kristaps  196: };
                    197:
                    198: const  char * const *mdoc_macronames = __mdoc_macronames;
                    199: const  char * const *mdoc_argnames = __mdoc_argnames;
                    200: const  struct mdoc_macro * const mdoc_macros = __mdoc_macros;
                    201:
                    202:
                    203: static struct mdoc_arg  *argdup(size_t, const struct mdoc_arg *);
                    204: static void              argfree(size_t, struct mdoc_arg *);
                    205: static void              argcpy(struct mdoc_arg *,
                    206:                                const struct mdoc_arg *);
                    207:
1.23      kristaps  208: static int               mdoc_node_append(struct mdoc *,
1.1       kristaps  209:                                struct mdoc_node *);
                    210: static void              mdoc_elem_free(struct mdoc_elem *);
                    211: static void              mdoc_text_free(struct mdoc_text *);
                    212:
                    213:
                    214: const struct mdoc_node *
1.37    ! kristaps  215: mdoc_node(struct mdoc *mdoc)
1.1       kristaps  216: {
                    217:
                    218:        return(mdoc->first);
                    219: }
                    220:
                    221:
1.37    ! kristaps  222: const struct mdoc_meta *
        !           223: mdoc_meta(struct mdoc *mdoc)
        !           224: {
        !           225:
        !           226:        return(&mdoc->meta);
        !           227: }
        !           228:
        !           229:
1.1       kristaps  230: void
1.34      kristaps  231: mdoc_meta_free(struct mdoc *mdoc)
                    232: {
                    233:
                    234:        if (mdoc->meta.title)
                    235:                free(mdoc->meta.title);
                    236:        if (mdoc->meta.os)
                    237:                free(mdoc->meta.os);
                    238:        if (mdoc->meta.name)
                    239:                free(mdoc->meta.name);
                    240: }
                    241:
                    242:
                    243: void
1.1       kristaps  244: mdoc_free(struct mdoc *mdoc)
                    245: {
                    246:
                    247:        if (mdoc->first)
                    248:                mdoc_node_freelist(mdoc->first);
                    249:        if (mdoc->htab)
1.4       kristaps  250:                mdoc_tokhash_free(mdoc->htab);
1.1       kristaps  251:
                    252:        free(mdoc);
                    253: }
                    254:
                    255:
                    256: struct mdoc *
                    257: mdoc_alloc(void *data, const struct mdoc_cb *cb)
                    258: {
                    259:        struct mdoc     *p;
                    260:
                    261:        p = xcalloc(1, sizeof(struct mdoc));
                    262:
                    263:        p->data = data;
1.33      kristaps  264:        if (cb)
                    265:                (void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
1.1       kristaps  266:
1.25      kristaps  267:        p->last = xcalloc(1, sizeof(struct mdoc_node));
                    268:        p->last->type = MDOC_ROOT;
                    269:        p->first = p->last;
                    270:
                    271:        p->next = MDOC_NEXT_CHILD;
1.4       kristaps  272:        p->htab = mdoc_tokhash_alloc();
1.25      kristaps  273:
1.1       kristaps  274:        return(p);
                    275: }
                    276:
                    277:
                    278: int
1.20      kristaps  279: mdoc_endparse(struct mdoc *mdoc)
                    280: {
                    281:
                    282:        if (MDOC_HALT & mdoc->flags)
                    283:                return(0);
                    284:        if (NULL == mdoc->first)
                    285:                return(1);
                    286:
                    287:        assert(mdoc->last);
                    288:        if ( ! macro_end(mdoc)) {
                    289:                mdoc->flags |= MDOC_HALT;
                    290:                return(0);
                    291:        }
                    292:        return(1);
                    293: }
                    294:
                    295:
                    296: int
                    297: mdoc_parseln(struct mdoc *mdoc, int line, char *buf)
1.1       kristaps  298: {
                    299:        int               c, i;
                    300:        char              tmp[5];
                    301:
1.20      kristaps  302:        if (MDOC_HALT & mdoc->flags)
                    303:                return(0);
                    304:
1.5       kristaps  305:        if ('.' != *buf) {
1.23      kristaps  306:                if (SEC_PROLOGUE != mdoc->sec_lastn) {
1.26      kristaps  307:                        if ( ! mdoc_word_alloc(mdoc, line, 0, buf))
                    308:                                return(0);
1.23      kristaps  309:                        mdoc->next = MDOC_NEXT_SIBLING;
                    310:                        return(1);
                    311:                }
1.31      kristaps  312:                return(mdoc_perr(mdoc, line, 0, "text disallowed"));
1.1       kristaps  313:        }
                    314:
                    315:        if (buf[1] && '\\' == buf[1])
                    316:                if (buf[2] && '\"' == buf[2])
                    317:                        return(1);
                    318:
                    319:        i = 1;
                    320:        while (buf[i] && ! isspace(buf[i]) && i < (int)sizeof(tmp))
                    321:                i++;
                    322:
1.20      kristaps  323:        if (i == (int)sizeof(tmp)) {
                    324:                mdoc->flags |= MDOC_HALT;
1.31      kristaps  325:                return(mdoc_perr(mdoc, line, 1, "unknown macro"));
1.20      kristaps  326:        } else if (i <= 2) {
                    327:                mdoc->flags |= MDOC_HALT;
1.31      kristaps  328:                return(mdoc_perr(mdoc, line, 1, "unknown macro"));
1.20      kristaps  329:        }
1.1       kristaps  330:
                    331:        i--;
                    332:
1.2       kristaps  333:        (void)memcpy(tmp, buf + 1, (size_t)i);
1.1       kristaps  334:        tmp[i++] = 0;
                    335:
1.20      kristaps  336:        if (MDOC_MAX == (c = mdoc_find(mdoc, tmp))) {
                    337:                mdoc->flags |= MDOC_HALT;
1.31      kristaps  338:                return(mdoc_perr(mdoc, line, 1, "unknown macro"));
1.20      kristaps  339:        }
1.1       kristaps  340:
                    341:        while (buf[i] && isspace(buf[i]))
                    342:                i++;
                    343:
1.21      kristaps  344:        if ( ! mdoc_macro(mdoc, c, line, 1, &i, buf)) {
1.20      kristaps  345:                mdoc->flags |= MDOC_HALT;
                    346:                return(0);
                    347:        }
                    348:        return(1);
1.1       kristaps  349: }
                    350:
                    351:
                    352: void
1.31      kristaps  353: mdoc_vmsg(struct mdoc *mdoc, int ln, int pos, const char *fmt, ...)
1.1       kristaps  354: {
1.31      kristaps  355:        char              buf[256];
1.23      kristaps  356:        va_list           ap;
1.1       kristaps  357:
                    358:        if (NULL == mdoc->cb.mdoc_msg)
                    359:                return;
                    360:
                    361:        va_start(ap, fmt);
1.31      kristaps  362:        (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
1.1       kristaps  363:        va_end(ap);
1.31      kristaps  364:        (*mdoc->cb.mdoc_msg)(mdoc->data, ln, pos, buf);
1.1       kristaps  365: }
                    366:
                    367:
                    368: int
1.31      kristaps  369: mdoc_verr(struct mdoc *mdoc, int ln, int pos,
                    370:                const char *fmt, ...)
1.1       kristaps  371: {
1.31      kristaps  372:        char             buf[256];
                    373:        va_list          ap;
1.1       kristaps  374:
                    375:        if (NULL == mdoc->cb.mdoc_err)
                    376:                return(0);
1.31      kristaps  377:
                    378:        va_start(ap, fmt);
                    379:        (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
                    380:        va_end(ap);
                    381:        return((*mdoc->cb.mdoc_err)(mdoc->data, ln, pos, buf));
1.1       kristaps  382: }
                    383:
                    384:
                    385: int
1.31      kristaps  386: mdoc_vwarn(struct mdoc *mdoc, int ln, int pos,
                    387:                enum mdoc_warn type, const char *fmt, ...)
1.1       kristaps  388: {
1.31      kristaps  389:        char             buf[256];
                    390:        va_list          ap;
1.1       kristaps  391:
                    392:        if (NULL == mdoc->cb.mdoc_warn)
                    393:                return(0);
1.31      kristaps  394:
                    395:        va_start(ap, fmt);
                    396:        (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
                    397:        va_end(ap);
                    398:        return((*mdoc->cb.mdoc_warn)(mdoc->data, ln, pos, type, buf));
1.1       kristaps  399: }
                    400:
                    401:
                    402: int
1.21      kristaps  403: mdoc_macro(struct mdoc *mdoc, int tok,
1.23      kristaps  404:                int ln, int ppos, int *pos, char *buf)
1.1       kristaps  405: {
                    406:
1.31      kristaps  407:        assert(mdoc_macros[tok].fp);
                    408:
1.17      kristaps  409:        if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
1.13      kristaps  410:                        SEC_PROLOGUE == mdoc->sec_lastn)
1.31      kristaps  411:                return(mdoc_perr(mdoc, ln, ppos, "macro disallowed in document prologue"));
1.23      kristaps  412:        if (1 != ppos && ! (MDOC_CALLABLE & mdoc_macros[tok].flags))
1.31      kristaps  413:                return(mdoc_perr(mdoc, ln, ppos, "macro not callable"));
1.23      kristaps  414:        return((*mdoc_macros[tok].fp)(mdoc, tok, ln, ppos, pos, buf));
1.1       kristaps  415: }
                    416:
                    417:
1.23      kristaps  418: static int
                    419: mdoc_node_append(struct mdoc *mdoc, struct mdoc_node *p)
1.1       kristaps  420: {
1.30      kristaps  421:        const char       *nn, *nt, *on, *ot, *act;
1.1       kristaps  422:
1.25      kristaps  423:        assert(mdoc->last);
                    424:        assert(mdoc->first);
                    425:        assert(MDOC_ROOT != p->type);
1.1       kristaps  426:
1.27      kristaps  427:        if (MDOC_TEXT == mdoc->last->type)
                    428:                on = "<text>";
                    429:        else if (MDOC_ROOT == mdoc->last->type)
                    430:                on = "<root>";
                    431:        else
                    432:                on = mdoc_macronames[mdoc->last->tok];
                    433:
1.30      kristaps  434:        if (MDOC_TEXT == p->type)
                    435:                nn = "<text>";
                    436:        else if (MDOC_ROOT == p->type)
                    437:                nn = "<root>";
                    438:        else
                    439:                nn = mdoc_macronames[p->tok];
                    440:
                    441:        ot = mdoc_type2a(mdoc->last->type);
                    442:        nt = mdoc_type2a(p->type);
1.1       kristaps  443:
1.13      kristaps  444:        switch (mdoc->next) {
                    445:        case (MDOC_NEXT_SIBLING):
1.6       kristaps  446:                mdoc->last->next = p;
                    447:                p->prev = mdoc->last;
1.13      kristaps  448:                p->parent = mdoc->last->parent;
1.6       kristaps  449:                act = "sibling";
1.1       kristaps  450:                break;
1.13      kristaps  451:        case (MDOC_NEXT_CHILD):
                    452:                mdoc->last->child = p;
1.1       kristaps  453:                p->parent = mdoc->last;
                    454:                act = "child";
                    455:                break;
                    456:        default:
1.13      kristaps  457:                abort();
                    458:                /* NOTREACHED */
1.1       kristaps  459:        }
                    460:
1.23      kristaps  461:        if ( ! mdoc_valid_pre(mdoc, p))
                    462:                return(0);
1.27      kristaps  463:
                    464:        switch (p->type) {
                    465:        case (MDOC_HEAD):
                    466:                assert(MDOC_BLOCK == p->parent->type);
                    467:                p->parent->data.block.head = p;
                    468:                break;
                    469:        case (MDOC_TAIL):
                    470:                assert(MDOC_BLOCK == p->parent->type);
                    471:                p->parent->data.block.tail = p;
                    472:                break;
                    473:        case (MDOC_BODY):
                    474:                assert(MDOC_BLOCK == p->parent->type);
                    475:                p->parent->data.block.body = p;
                    476:                break;
                    477:        default:
                    478:                break;
                    479:        }
                    480:
1.1       kristaps  481:        mdoc->last = p;
1.30      kristaps  482:        mdoc_msg(mdoc, "parse: %s `%s' %s of %s `%s'",
                    483:                        nt, nn, act, ot, on);
1.23      kristaps  484:        return(1);
1.1       kristaps  485: }
                    486:
                    487:
1.23      kristaps  488: int
1.22      kristaps  489: mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.17      kristaps  490: {
                    491:        struct mdoc_node *p;
                    492:
                    493:        assert(mdoc->first);
                    494:        assert(mdoc->last);
                    495:
                    496:        p = xcalloc(1, sizeof(struct mdoc_node));
                    497:
1.22      kristaps  498:        p->line = line;
                    499:        p->pos = pos;
1.17      kristaps  500:        p->type = MDOC_TAIL;
1.27      kristaps  501:        p->tok = tok;
1.17      kristaps  502:
1.23      kristaps  503:        return(mdoc_node_append(mdoc, p));
1.17      kristaps  504: }
                    505:
                    506:
1.23      kristaps  507: int
1.22      kristaps  508: mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.1       kristaps  509: {
                    510:        struct mdoc_node *p;
                    511:
                    512:        assert(mdoc->first);
                    513:        assert(mdoc->last);
                    514:
                    515:        p = xcalloc(1, sizeof(struct mdoc_node));
1.13      kristaps  516:
1.22      kristaps  517:        p->line = line;
                    518:        p->pos = pos;
1.1       kristaps  519:        p->type = MDOC_HEAD;
1.27      kristaps  520:        p->tok = tok;
1.1       kristaps  521:
1.23      kristaps  522:        return(mdoc_node_append(mdoc, p));
1.1       kristaps  523: }
                    524:
                    525:
1.23      kristaps  526: int
1.22      kristaps  527: mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.1       kristaps  528: {
                    529:        struct mdoc_node *p;
                    530:
                    531:        assert(mdoc->first);
                    532:        assert(mdoc->last);
                    533:
                    534:        p = xcalloc(1, sizeof(struct mdoc_node));
                    535:
1.22      kristaps  536:        p->line = line;
                    537:        p->pos = pos;
1.1       kristaps  538:        p->type = MDOC_BODY;
1.27      kristaps  539:        p->tok = tok;
1.1       kristaps  540:
1.23      kristaps  541:        return(mdoc_node_append(mdoc, p));
1.1       kristaps  542: }
                    543:
                    544:
1.23      kristaps  545: int
1.25      kristaps  546: mdoc_root_alloc(struct mdoc *mdoc)
                    547: {
                    548:        struct mdoc_node *p;
                    549:
                    550:        p = xcalloc(1, sizeof(struct mdoc_node));
                    551:
                    552:        p->type = MDOC_ROOT;
                    553:
                    554:        return(mdoc_node_append(mdoc, p));
                    555: }
                    556:
                    557:
                    558: int
1.22      kristaps  559: mdoc_block_alloc(struct mdoc *mdoc, int line, int pos,
                    560:                int tok, size_t argsz, const struct mdoc_arg *args)
1.1       kristaps  561: {
                    562:        struct mdoc_node *p;
                    563:
                    564:        p = xcalloc(1, sizeof(struct mdoc_node));
                    565:
1.22      kristaps  566:        p->pos = pos;
                    567:        p->line = line;
1.1       kristaps  568:        p->type = MDOC_BLOCK;
1.27      kristaps  569:        p->tok = tok;
1.1       kristaps  570:        p->data.block.argc = argsz;
                    571:        p->data.block.argv = argdup(argsz, args);
                    572:
1.23      kristaps  573:        return(mdoc_node_append(mdoc, p));
1.1       kristaps  574: }
                    575:
                    576:
1.23      kristaps  577: int
1.22      kristaps  578: mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos,
                    579:                int tok, size_t argsz, const struct mdoc_arg *args)
1.1       kristaps  580: {
                    581:        struct mdoc_node *p;
                    582:
                    583:        p = xcalloc(1, sizeof(struct mdoc_node));
1.22      kristaps  584:
                    585:        p->line = line;
                    586:        p->pos = pos;
1.1       kristaps  587:        p->type = MDOC_ELEM;
1.27      kristaps  588:        p->tok = tok;
1.1       kristaps  589:        p->data.elem.argc = argsz;
                    590:        p->data.elem.argv = argdup(argsz, args);
                    591:
1.23      kristaps  592:        return(mdoc_node_append(mdoc, p));
1.1       kristaps  593: }
                    594:
                    595:
1.23      kristaps  596: int
1.22      kristaps  597: mdoc_word_alloc(struct mdoc *mdoc,
                    598:                int line, int pos, const char *word)
1.1       kristaps  599: {
                    600:        struct mdoc_node *p;
                    601:
                    602:        p = xcalloc(1, sizeof(struct mdoc_node));
1.22      kristaps  603:        p->line = line;
                    604:        p->pos = pos;
1.1       kristaps  605:        p->type = MDOC_TEXT;
                    606:        p->data.text.string = xstrdup(word);
                    607:
1.23      kristaps  608:        return(mdoc_node_append(mdoc, p));
1.1       kristaps  609: }
                    610:
                    611:
                    612: static void
                    613: argfree(size_t sz, struct mdoc_arg *p)
                    614: {
1.2       kristaps  615:        int              i, j;
1.1       kristaps  616:
                    617:        if (0 == sz)
                    618:                return;
                    619:
                    620:        assert(p);
1.2       kristaps  621:        /* LINTED */
                    622:        for (i = 0; i < (int)sz; i++)
1.1       kristaps  623:                if (p[i].sz > 0) {
                    624:                        assert(p[i].value);
1.2       kristaps  625:                        /* LINTED */
                    626:                        for (j = 0; j < (int)p[i].sz; j++)
1.1       kristaps  627:                                free(p[i].value[j]);
1.19      kristaps  628:                        free(p[i].value);
1.1       kristaps  629:                }
                    630:        free(p);
                    631: }
                    632:
                    633:
                    634: static void
                    635: mdoc_elem_free(struct mdoc_elem *p)
                    636: {
                    637:
                    638:        argfree(p->argc, p->argv);
                    639: }
                    640:
                    641:
                    642: static void
                    643: mdoc_block_free(struct mdoc_block *p)
                    644: {
                    645:
                    646:        argfree(p->argc, p->argv);
                    647: }
                    648:
                    649:
                    650: static void
                    651: mdoc_text_free(struct mdoc_text *p)
                    652: {
                    653:
                    654:        if (p->string)
                    655:                free(p->string);
                    656: }
                    657:
                    658:
                    659: void
                    660: mdoc_node_free(struct mdoc_node *p)
                    661: {
                    662:
                    663:        switch (p->type) {
                    664:        case (MDOC_TEXT):
                    665:                mdoc_text_free(&p->data.text);
                    666:                break;
                    667:        case (MDOC_ELEM):
                    668:                mdoc_elem_free(&p->data.elem);
                    669:                break;
                    670:        case (MDOC_BLOCK):
                    671:                mdoc_block_free(&p->data.block);
                    672:                break;
                    673:        default:
                    674:                break;
                    675:        }
                    676:
                    677:        free(p);
                    678: }
                    679:
                    680:
1.37    ! kristaps  681: void
1.1       kristaps  682: mdoc_node_freelist(struct mdoc_node *p)
                    683: {
                    684:
                    685:        if (p->child)
                    686:                mdoc_node_freelist(p->child);
                    687:        if (p->next)
                    688:                mdoc_node_freelist(p->next);
                    689:
                    690:        mdoc_node_free(p);
                    691: }
                    692:
                    693:
                    694: int
                    695: mdoc_find(const struct mdoc *mdoc, const char *key)
                    696: {
                    697:
1.4       kristaps  698:        return(mdoc_tokhash_find(mdoc->htab, key));
1.1       kristaps  699: }
                    700:
                    701:
                    702: static void
                    703: argcpy(struct mdoc_arg *dst, const struct mdoc_arg *src)
                    704: {
1.2       kristaps  705:        int              i;
1.1       kristaps  706:
1.26      kristaps  707:        dst->line = src->line;
                    708:        dst->pos = src->pos;
1.1       kristaps  709:        dst->arg = src->arg;
                    710:        if (0 == (dst->sz = src->sz))
                    711:                return;
                    712:        dst->value = xcalloc(dst->sz, sizeof(char *));
1.2       kristaps  713:        for (i = 0; i < (int)dst->sz; i++)
1.1       kristaps  714:                dst->value[i] = xstrdup(src->value[i]);
                    715: }
                    716:
                    717:
                    718: static struct mdoc_arg *
                    719: argdup(size_t argsz, const struct mdoc_arg *args)
                    720: {
                    721:        struct mdoc_arg *pp;
1.2       kristaps  722:        int              i;
1.1       kristaps  723:
                    724:        if (0 == argsz)
                    725:                return(NULL);
                    726:
                    727:        pp = xcalloc((size_t)argsz, sizeof(struct mdoc_arg));
1.2       kristaps  728:        for (i = 0; i < (int)argsz; i++)
1.1       kristaps  729:                argcpy(&pp[i], &args[i]);
                    730:
                    731:        return(pp);
                    732: }
                    733:
1.35      kristaps  734:
1.36      kristaps  735: /* FIXME: deprecate. */
1.35      kristaps  736: char *
                    737: mdoc_node2a(struct mdoc_node *node)
                    738: {
                    739:        static char      buf[64];
                    740:
                    741:        assert(node);
                    742:
                    743:        buf[0] = 0;
                    744:        (void)xstrlcat(buf, mdoc_type2a(node->type), 64);
                    745:        if (MDOC_ROOT == node->type)
                    746:                return(buf);
                    747:        (void)xstrlcat(buf, " `", 64);
                    748:        if (MDOC_TEXT == node->type)
                    749:                (void)xstrlcat(buf, node->data.text.string, 64);
                    750:        else
                    751:                (void)xstrlcat(buf, mdoc_macronames[node->tok], 64);
1.36      kristaps  752:        (void)xstrlcat(buf, "'", 64);
1.35      kristaps  753:
                    754:        return(buf);
                    755: }
                    756:
                    757:

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