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Annotation of mandoc/mdoc.c, Revision 1.40

1.40    ! kristaps    1: /* $Id: mdoc.c,v 1.39 2009/01/20 12:51:28 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 }, /* \" */
1.39      kristaps   88:        { macro_constant, MDOC_PROLOGUE }, /* Dd */
                     89:        { macro_constant, MDOC_PROLOGUE }, /* Dt */
                     90:        { macro_constant, MDOC_PROLOGUE }, /* 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
1.38      kristaps  231: mdoc_free(struct mdoc *mdoc)
1.34      kristaps  232: {
                    233:
1.38      kristaps  234:        if (mdoc->first)
                    235:                mdoc_node_freelist(mdoc->first);
                    236:        if (mdoc->htab)
                    237:                mdoc_tokhash_free(mdoc->htab);
1.34      kristaps  238:        if (mdoc->meta.title)
                    239:                free(mdoc->meta.title);
                    240:        if (mdoc->meta.os)
                    241:                free(mdoc->meta.os);
                    242:        if (mdoc->meta.name)
                    243:                free(mdoc->meta.name);
                    244:
1.1       kristaps  245:        free(mdoc);
                    246: }
                    247:
                    248:
                    249: struct mdoc *
                    250: mdoc_alloc(void *data, const struct mdoc_cb *cb)
                    251: {
                    252:        struct mdoc     *p;
                    253:
                    254:        p = xcalloc(1, sizeof(struct mdoc));
                    255:
                    256:        p->data = data;
1.33      kristaps  257:        if (cb)
                    258:                (void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
1.1       kristaps  259:
1.25      kristaps  260:        p->last = xcalloc(1, sizeof(struct mdoc_node));
                    261:        p->last->type = MDOC_ROOT;
                    262:        p->first = p->last;
                    263:
                    264:        p->next = MDOC_NEXT_CHILD;
1.4       kristaps  265:        p->htab = mdoc_tokhash_alloc();
1.25      kristaps  266:
1.1       kristaps  267:        return(p);
                    268: }
                    269:
                    270:
                    271: int
1.20      kristaps  272: mdoc_endparse(struct mdoc *mdoc)
                    273: {
                    274:
                    275:        if (MDOC_HALT & mdoc->flags)
                    276:                return(0);
                    277:        if (NULL == mdoc->first)
                    278:                return(1);
                    279:
                    280:        assert(mdoc->last);
                    281:        if ( ! macro_end(mdoc)) {
                    282:                mdoc->flags |= MDOC_HALT;
                    283:                return(0);
                    284:        }
                    285:        return(1);
                    286: }
                    287:
                    288:
                    289: int
                    290: mdoc_parseln(struct mdoc *mdoc, int line, char *buf)
1.1       kristaps  291: {
                    292:        int               c, i;
                    293:        char              tmp[5];
                    294:
1.20      kristaps  295:        if (MDOC_HALT & mdoc->flags)
                    296:                return(0);
                    297:
1.39      kristaps  298:        mdoc->linetok = 0;
                    299:
1.5       kristaps  300:        if ('.' != *buf) {
1.39      kristaps  301:                if ( ! (MDOC_BODYPARSE & mdoc->flags))
                    302:                        return(mdoc_perr(mdoc, line, 0, "text disallowed"));
                    303:                if ( ! mdoc_word_alloc(mdoc, line, 0, buf))
                    304:                        return(0);
                    305:                mdoc->next = MDOC_NEXT_SIBLING;
                    306:                return(1);
1.1       kristaps  307:        }
                    308:
                    309:        if (buf[1] && '\\' == buf[1])
                    310:                if (buf[2] && '\"' == buf[2])
                    311:                        return(1);
                    312:
                    313:        i = 1;
                    314:        while (buf[i] && ! isspace(buf[i]) && i < (int)sizeof(tmp))
                    315:                i++;
                    316:
1.20      kristaps  317:        if (i == (int)sizeof(tmp)) {
                    318:                mdoc->flags |= MDOC_HALT;
1.31      kristaps  319:                return(mdoc_perr(mdoc, line, 1, "unknown macro"));
1.20      kristaps  320:        } else if (i <= 2) {
                    321:                mdoc->flags |= MDOC_HALT;
1.31      kristaps  322:                return(mdoc_perr(mdoc, line, 1, "unknown macro"));
1.20      kristaps  323:        }
1.1       kristaps  324:
                    325:        i--;
                    326:
1.2       kristaps  327:        (void)memcpy(tmp, buf + 1, (size_t)i);
1.1       kristaps  328:        tmp[i++] = 0;
                    329:
1.20      kristaps  330:        if (MDOC_MAX == (c = mdoc_find(mdoc, tmp))) {
                    331:                mdoc->flags |= MDOC_HALT;
1.31      kristaps  332:                return(mdoc_perr(mdoc, line, 1, "unknown macro"));
1.20      kristaps  333:        }
1.1       kristaps  334:
                    335:        while (buf[i] && isspace(buf[i]))
                    336:                i++;
                    337:
1.21      kristaps  338:        if ( ! mdoc_macro(mdoc, c, line, 1, &i, buf)) {
1.20      kristaps  339:                mdoc->flags |= MDOC_HALT;
                    340:                return(0);
                    341:        }
                    342:        return(1);
1.1       kristaps  343: }
                    344:
                    345:
                    346: void
1.31      kristaps  347: mdoc_vmsg(struct mdoc *mdoc, int ln, int pos, const char *fmt, ...)
1.1       kristaps  348: {
1.31      kristaps  349:        char              buf[256];
1.23      kristaps  350:        va_list           ap;
1.1       kristaps  351:
                    352:        if (NULL == mdoc->cb.mdoc_msg)
                    353:                return;
                    354:
                    355:        va_start(ap, fmt);
1.31      kristaps  356:        (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
1.1       kristaps  357:        va_end(ap);
1.31      kristaps  358:        (*mdoc->cb.mdoc_msg)(mdoc->data, ln, pos, buf);
1.1       kristaps  359: }
                    360:
                    361:
                    362: int
1.31      kristaps  363: mdoc_verr(struct mdoc *mdoc, int ln, int pos,
                    364:                const char *fmt, ...)
1.1       kristaps  365: {
1.31      kristaps  366:        char             buf[256];
                    367:        va_list          ap;
1.1       kristaps  368:
                    369:        if (NULL == mdoc->cb.mdoc_err)
                    370:                return(0);
1.31      kristaps  371:
                    372:        va_start(ap, fmt);
                    373:        (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
                    374:        va_end(ap);
                    375:        return((*mdoc->cb.mdoc_err)(mdoc->data, ln, pos, buf));
1.1       kristaps  376: }
                    377:
                    378:
                    379: int
1.31      kristaps  380: mdoc_vwarn(struct mdoc *mdoc, int ln, int pos,
                    381:                enum mdoc_warn type, const char *fmt, ...)
1.1       kristaps  382: {
1.31      kristaps  383:        char             buf[256];
                    384:        va_list          ap;
1.1       kristaps  385:
                    386:        if (NULL == mdoc->cb.mdoc_warn)
                    387:                return(0);
1.31      kristaps  388:
                    389:        va_start(ap, fmt);
                    390:        (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
                    391:        va_end(ap);
                    392:        return((*mdoc->cb.mdoc_warn)(mdoc->data, ln, pos, type, buf));
1.1       kristaps  393: }
                    394:
                    395:
                    396: int
1.21      kristaps  397: mdoc_macro(struct mdoc *mdoc, int tok,
1.23      kristaps  398:                int ln, int ppos, int *pos, char *buf)
1.1       kristaps  399: {
                    400:
1.31      kristaps  401:        assert(mdoc_macros[tok].fp);
                    402:
1.17      kristaps  403:        if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
1.39      kristaps  404:                        ! (MDOC_BODYPARSE & mdoc->flags))
                    405:                return(mdoc_perr(mdoc, ln, ppos, "macro disallowed: not in document body"));
1.23      kristaps  406:        if (1 != ppos && ! (MDOC_CALLABLE & mdoc_macros[tok].flags))
1.31      kristaps  407:                return(mdoc_perr(mdoc, ln, ppos, "macro not callable"));
1.23      kristaps  408:        return((*mdoc_macros[tok].fp)(mdoc, tok, ln, ppos, pos, buf));
1.1       kristaps  409: }
                    410:
                    411:
1.23      kristaps  412: static int
                    413: mdoc_node_append(struct mdoc *mdoc, struct mdoc_node *p)
1.1       kristaps  414: {
1.30      kristaps  415:        const char       *nn, *nt, *on, *ot, *act;
1.1       kristaps  416:
1.25      kristaps  417:        assert(mdoc->last);
                    418:        assert(mdoc->first);
                    419:        assert(MDOC_ROOT != p->type);
1.1       kristaps  420:
1.39      kristaps  421:        /* See if we exceed the suggest line-max. */
                    422:
                    423:        switch (p->type) {
                    424:        case (MDOC_TEXT):
                    425:                /* FALLTHROUGH */
                    426:        case (MDOC_ELEM):
                    427:                /* FALLTHROUGH */
                    428:        case (MDOC_BLOCK):
                    429:                mdoc->linetok++;
                    430:                break;
                    431:        default:
                    432:                break;
                    433:        }
                    434:
1.40    ! kristaps  435:        /* This sort-of works (re-opening of text macros...). */
1.39      kristaps  436:        if (mdoc->linetok > MDOC_LINEARG_SOFTMAX)
                    437:                if ( ! mdoc_nwarn(mdoc, p, WARN_COMPAT,
                    438:                                        "suggested %d tokens per line exceeded (has %d)",
                    439:                                        MDOC_LINEARG_SOFTMAX, mdoc->linetok))
                    440:                        return(0);
                    441:
1.27      kristaps  442:        if (MDOC_TEXT == mdoc->last->type)
                    443:                on = "<text>";
                    444:        else if (MDOC_ROOT == mdoc->last->type)
                    445:                on = "<root>";
                    446:        else
                    447:                on = mdoc_macronames[mdoc->last->tok];
                    448:
1.30      kristaps  449:        if (MDOC_TEXT == p->type)
                    450:                nn = "<text>";
                    451:        else if (MDOC_ROOT == p->type)
                    452:                nn = "<root>";
                    453:        else
                    454:                nn = mdoc_macronames[p->tok];
                    455:
                    456:        ot = mdoc_type2a(mdoc->last->type);
                    457:        nt = mdoc_type2a(p->type);
1.1       kristaps  458:
1.13      kristaps  459:        switch (mdoc->next) {
                    460:        case (MDOC_NEXT_SIBLING):
1.6       kristaps  461:                mdoc->last->next = p;
                    462:                p->prev = mdoc->last;
1.13      kristaps  463:                p->parent = mdoc->last->parent;
1.6       kristaps  464:                act = "sibling";
1.1       kristaps  465:                break;
1.13      kristaps  466:        case (MDOC_NEXT_CHILD):
                    467:                mdoc->last->child = p;
1.1       kristaps  468:                p->parent = mdoc->last;
                    469:                act = "child";
                    470:                break;
                    471:        default:
1.13      kristaps  472:                abort();
                    473:                /* NOTREACHED */
1.1       kristaps  474:        }
                    475:
1.23      kristaps  476:        if ( ! mdoc_valid_pre(mdoc, p))
                    477:                return(0);
1.27      kristaps  478:
                    479:        switch (p->type) {
                    480:        case (MDOC_HEAD):
                    481:                assert(MDOC_BLOCK == p->parent->type);
                    482:                p->parent->data.block.head = p;
                    483:                break;
                    484:        case (MDOC_TAIL):
                    485:                assert(MDOC_BLOCK == p->parent->type);
                    486:                p->parent->data.block.tail = p;
                    487:                break;
                    488:        case (MDOC_BODY):
                    489:                assert(MDOC_BLOCK == p->parent->type);
                    490:                p->parent->data.block.body = p;
                    491:                break;
                    492:        default:
                    493:                break;
                    494:        }
                    495:
1.1       kristaps  496:        mdoc->last = p;
1.30      kristaps  497:        mdoc_msg(mdoc, "parse: %s `%s' %s of %s `%s'",
                    498:                        nt, nn, act, ot, on);
1.23      kristaps  499:        return(1);
1.1       kristaps  500: }
                    501:
                    502:
1.23      kristaps  503: int
1.22      kristaps  504: mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.17      kristaps  505: {
                    506:        struct mdoc_node *p;
                    507:
                    508:        assert(mdoc->first);
                    509:        assert(mdoc->last);
                    510:
                    511:        p = xcalloc(1, sizeof(struct mdoc_node));
                    512:
1.22      kristaps  513:        p->line = line;
                    514:        p->pos = pos;
1.17      kristaps  515:        p->type = MDOC_TAIL;
1.27      kristaps  516:        p->tok = tok;
1.17      kristaps  517:
1.23      kristaps  518:        return(mdoc_node_append(mdoc, p));
1.17      kristaps  519: }
                    520:
                    521:
1.23      kristaps  522: int
1.22      kristaps  523: mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.1       kristaps  524: {
                    525:        struct mdoc_node *p;
                    526:
                    527:        assert(mdoc->first);
                    528:        assert(mdoc->last);
                    529:
                    530:        p = xcalloc(1, sizeof(struct mdoc_node));
1.13      kristaps  531:
1.22      kristaps  532:        p->line = line;
                    533:        p->pos = pos;
1.1       kristaps  534:        p->type = MDOC_HEAD;
1.27      kristaps  535:        p->tok = tok;
1.1       kristaps  536:
1.23      kristaps  537:        return(mdoc_node_append(mdoc, p));
1.1       kristaps  538: }
                    539:
                    540:
1.23      kristaps  541: int
1.22      kristaps  542: mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.1       kristaps  543: {
                    544:        struct mdoc_node *p;
                    545:
                    546:        assert(mdoc->first);
                    547:        assert(mdoc->last);
                    548:
                    549:        p = xcalloc(1, sizeof(struct mdoc_node));
                    550:
1.22      kristaps  551:        p->line = line;
                    552:        p->pos = pos;
1.1       kristaps  553:        p->type = MDOC_BODY;
1.27      kristaps  554:        p->tok = tok;
1.1       kristaps  555:
1.23      kristaps  556:        return(mdoc_node_append(mdoc, p));
1.1       kristaps  557: }
                    558:
                    559:
1.23      kristaps  560: int
1.25      kristaps  561: mdoc_root_alloc(struct mdoc *mdoc)
                    562: {
                    563:        struct mdoc_node *p;
                    564:
                    565:        p = xcalloc(1, sizeof(struct mdoc_node));
                    566:
                    567:        p->type = MDOC_ROOT;
                    568:
                    569:        return(mdoc_node_append(mdoc, p));
                    570: }
                    571:
                    572:
                    573: int
1.22      kristaps  574: mdoc_block_alloc(struct mdoc *mdoc, int line, int pos,
                    575:                int tok, size_t argsz, const struct mdoc_arg *args)
1.1       kristaps  576: {
                    577:        struct mdoc_node *p;
                    578:
                    579:        p = xcalloc(1, sizeof(struct mdoc_node));
                    580:
1.22      kristaps  581:        p->pos = pos;
                    582:        p->line = line;
1.1       kristaps  583:        p->type = MDOC_BLOCK;
1.27      kristaps  584:        p->tok = tok;
1.1       kristaps  585:        p->data.block.argc = argsz;
                    586:        p->data.block.argv = argdup(argsz, args);
                    587:
1.23      kristaps  588:        return(mdoc_node_append(mdoc, p));
1.1       kristaps  589: }
                    590:
                    591:
1.23      kristaps  592: int
1.22      kristaps  593: mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos,
                    594:                int tok, size_t argsz, const struct mdoc_arg *args)
1.1       kristaps  595: {
                    596:        struct mdoc_node *p;
                    597:
                    598:        p = xcalloc(1, sizeof(struct mdoc_node));
1.22      kristaps  599:
                    600:        p->line = line;
                    601:        p->pos = pos;
1.1       kristaps  602:        p->type = MDOC_ELEM;
1.27      kristaps  603:        p->tok = tok;
1.1       kristaps  604:        p->data.elem.argc = argsz;
                    605:        p->data.elem.argv = argdup(argsz, args);
                    606:
1.23      kristaps  607:        return(mdoc_node_append(mdoc, p));
1.1       kristaps  608: }
                    609:
                    610:
1.23      kristaps  611: int
1.22      kristaps  612: mdoc_word_alloc(struct mdoc *mdoc,
                    613:                int line, int pos, const char *word)
1.1       kristaps  614: {
                    615:        struct mdoc_node *p;
                    616:
                    617:        p = xcalloc(1, sizeof(struct mdoc_node));
1.22      kristaps  618:        p->line = line;
                    619:        p->pos = pos;
1.1       kristaps  620:        p->type = MDOC_TEXT;
                    621:        p->data.text.string = xstrdup(word);
                    622:
1.23      kristaps  623:        return(mdoc_node_append(mdoc, p));
1.1       kristaps  624: }
                    625:
                    626:
                    627: static void
                    628: argfree(size_t sz, struct mdoc_arg *p)
                    629: {
1.2       kristaps  630:        int              i, j;
1.1       kristaps  631:
                    632:        if (0 == sz)
                    633:                return;
                    634:
                    635:        assert(p);
1.2       kristaps  636:        /* LINTED */
                    637:        for (i = 0; i < (int)sz; i++)
1.1       kristaps  638:                if (p[i].sz > 0) {
                    639:                        assert(p[i].value);
1.2       kristaps  640:                        /* LINTED */
                    641:                        for (j = 0; j < (int)p[i].sz; j++)
1.1       kristaps  642:                                free(p[i].value[j]);
1.19      kristaps  643:                        free(p[i].value);
1.1       kristaps  644:                }
                    645:        free(p);
                    646: }
                    647:
                    648:
                    649: static void
                    650: mdoc_elem_free(struct mdoc_elem *p)
                    651: {
                    652:
                    653:        argfree(p->argc, p->argv);
                    654: }
                    655:
                    656:
                    657: static void
                    658: mdoc_block_free(struct mdoc_block *p)
                    659: {
                    660:
                    661:        argfree(p->argc, p->argv);
                    662: }
                    663:
                    664:
                    665: static void
                    666: mdoc_text_free(struct mdoc_text *p)
                    667: {
                    668:
                    669:        if (p->string)
                    670:                free(p->string);
                    671: }
                    672:
                    673:
                    674: void
                    675: mdoc_node_free(struct mdoc_node *p)
                    676: {
                    677:
                    678:        switch (p->type) {
                    679:        case (MDOC_TEXT):
                    680:                mdoc_text_free(&p->data.text);
                    681:                break;
                    682:        case (MDOC_ELEM):
                    683:                mdoc_elem_free(&p->data.elem);
                    684:                break;
                    685:        case (MDOC_BLOCK):
                    686:                mdoc_block_free(&p->data.block);
                    687:                break;
                    688:        default:
                    689:                break;
                    690:        }
                    691:
                    692:        free(p);
                    693: }
                    694:
                    695:
1.37      kristaps  696: void
1.1       kristaps  697: mdoc_node_freelist(struct mdoc_node *p)
                    698: {
                    699:
                    700:        if (p->child)
                    701:                mdoc_node_freelist(p->child);
                    702:        if (p->next)
                    703:                mdoc_node_freelist(p->next);
                    704:
                    705:        mdoc_node_free(p);
                    706: }
                    707:
                    708:
                    709: int
                    710: mdoc_find(const struct mdoc *mdoc, const char *key)
                    711: {
                    712:
1.4       kristaps  713:        return(mdoc_tokhash_find(mdoc->htab, key));
1.1       kristaps  714: }
                    715:
                    716:
                    717: static void
                    718: argcpy(struct mdoc_arg *dst, const struct mdoc_arg *src)
                    719: {
1.2       kristaps  720:        int              i;
1.1       kristaps  721:
1.26      kristaps  722:        dst->line = src->line;
                    723:        dst->pos = src->pos;
1.1       kristaps  724:        dst->arg = src->arg;
                    725:        if (0 == (dst->sz = src->sz))
                    726:                return;
                    727:        dst->value = xcalloc(dst->sz, sizeof(char *));
1.2       kristaps  728:        for (i = 0; i < (int)dst->sz; i++)
1.1       kristaps  729:                dst->value[i] = xstrdup(src->value[i]);
                    730: }
                    731:
                    732:
                    733: static struct mdoc_arg *
                    734: argdup(size_t argsz, const struct mdoc_arg *args)
                    735: {
                    736:        struct mdoc_arg *pp;
1.2       kristaps  737:        int              i;
1.1       kristaps  738:
                    739:        if (0 == argsz)
                    740:                return(NULL);
                    741:
                    742:        pp = xcalloc((size_t)argsz, sizeof(struct mdoc_arg));
1.2       kristaps  743:        for (i = 0; i < (int)argsz; i++)
1.1       kristaps  744:                argcpy(&pp[i], &args[i]);
                    745:
                    746:        return(pp);
                    747: }
                    748:
1.35      kristaps  749:
1.36      kristaps  750: /* FIXME: deprecate. */
1.35      kristaps  751: char *
                    752: mdoc_node2a(struct mdoc_node *node)
                    753: {
                    754:        static char      buf[64];
                    755:
                    756:        assert(node);
                    757:
                    758:        buf[0] = 0;
                    759:        (void)xstrlcat(buf, mdoc_type2a(node->type), 64);
                    760:        if (MDOC_ROOT == node->type)
                    761:                return(buf);
                    762:        (void)xstrlcat(buf, " `", 64);
                    763:        if (MDOC_TEXT == node->type)
                    764:                (void)xstrlcat(buf, node->data.text.string, 64);
                    765:        else
                    766:                (void)xstrlcat(buf, mdoc_macronames[node->tok], 64);
1.36      kristaps  767:        (void)xstrlcat(buf, "'", 64);
1.35      kristaps  768:
                    769:        return(buf);
                    770: }
                    771:
                    772:

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