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Annotation of mandoc/term.c, Revision 1.100

1.100   ! kristaps    1: /*     $Id: term.c,v 1.99 2009/09/16 09:41:24 kristaps Exp $ */
1.1       kristaps    2: /*
1.75      kristaps    3:  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
1.1       kristaps    4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
1.74      kristaps    6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    8:  *
1.74      kristaps    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.
1.1       kristaps   16:  */
                     17: #include <assert.h>
1.23      kristaps   18: #include <err.h>
1.22      kristaps   19: #include <stdio.h>
1.1       kristaps   20: #include <stdlib.h>
                     21: #include <string.h>
                     22:
1.71      kristaps   23: #include "term.h"
                     24: #include "man.h"
                     25: #include "mdoc.h"
1.1       kristaps   26:
1.99      kristaps   27: extern void              man_run(struct termp *,
1.71      kristaps   28:                                const struct man *);
1.99      kristaps   29: extern void              mdoc_run(struct termp *,
1.71      kristaps   30:                                const struct mdoc *);
1.1       kristaps   31:
1.71      kristaps   32: static struct termp     *term_alloc(enum termenc);
                     33: static void              term_free(struct termp *);
1.95      kristaps   34:
                     35: static void              do_escaped(struct termp *, const char **);
                     36: static void              do_special(struct termp *,
1.71      kristaps   37:                                const char *, size_t);
1.95      kristaps   38: static void              do_reserved(struct termp *,
1.94      kristaps   39:                                const char *, size_t);
1.95      kristaps   40: static void              buffer(struct termp *, char);
                     41: static void              encode(struct termp *, char);
1.1       kristaps   42:
                     43:
1.71      kristaps   44: void *
                     45: ascii_alloc(void)
1.10      kristaps   46: {
1.1       kristaps   47:
1.71      kristaps   48:        return(term_alloc(TERMENC_ASCII));
1.1       kristaps   49: }
                     50:
                     51:
1.99      kristaps   52: void
1.72      kristaps   53: terminal_man(void *arg, const struct man *man)
1.1       kristaps   54: {
1.71      kristaps   55:        struct termp    *p;
1.1       kristaps   56:
1.71      kristaps   57:        p = (struct termp *)arg;
                     58:        if (NULL == p->symtab)
                     59:                p->symtab = term_ascii2htab();
1.2       kristaps   60:
1.99      kristaps   61:        man_run(p, man);
1.72      kristaps   62: }
                     63:
                     64:
1.99      kristaps   65: void
1.72      kristaps   66: terminal_mdoc(void *arg, const struct mdoc *mdoc)
                     67: {
                     68:        struct termp    *p;
                     69:
                     70:        p = (struct termp *)arg;
                     71:        if (NULL == p->symtab)
                     72:                p->symtab = term_ascii2htab();
1.2       kristaps   73:
1.99      kristaps   74:        mdoc_run(p, mdoc);
1.1       kristaps   75: }
                     76:
                     77:
1.71      kristaps   78: void
                     79: terminal_free(void *arg)
1.11      kristaps   80: {
                     81:
1.71      kristaps   82:        term_free((struct termp *)arg);
1.11      kristaps   83: }
                     84:
                     85:
1.71      kristaps   86: static void
                     87: term_free(struct termp *p)
1.14      kristaps   88: {
                     89:
1.71      kristaps   90:        if (p->buf)
                     91:                free(p->buf);
                     92:        if (TERMENC_ASCII == p->enc && p->symtab)
                     93:                term_asciifree(p->symtab);
1.14      kristaps   94:
1.71      kristaps   95:        free(p);
1.14      kristaps   96: }
                     97:
                     98:
1.71      kristaps   99: static struct termp *
                    100: term_alloc(enum termenc enc)
1.14      kristaps  101: {
1.71      kristaps  102:        struct termp *p;
1.14      kristaps  103:
1.71      kristaps  104:        if (NULL == (p = malloc(sizeof(struct termp))))
1.98      kristaps  105:                return(NULL);
1.71      kristaps  106:        bzero(p, sizeof(struct termp));
1.80      kristaps  107:        p->maxrmargin = 78;
1.71      kristaps  108:        p->enc = enc;
                    109:        return(p);
1.14      kristaps  110: }
                    111:
                    112:
1.71      kristaps  113: /*
                    114:  * Flush a line of text.  A "line" is loosely defined as being something
                    115:  * that should be followed by a newline, regardless of whether it's
                    116:  * broken apart by newlines getting there.  A line can also be a
                    117:  * fragment of a columnar list.
                    118:  *
                    119:  * Specifically, a line is whatever's in p->buf of length p->col, which
                    120:  * is zeroed after this function returns.
                    121:  *
1.84      kristaps  122:  * The usage of termp:flags is as follows:
1.71      kristaps  123:  *
                    124:  *  - TERMP_NOLPAD: when beginning to write the line, don't left-pad the
                    125:  *    offset value.  This is useful when doing columnar lists where the
                    126:  *    prior column has right-padded.
                    127:  *
                    128:  *  - TERMP_NOBREAK: this is the most important and is used when making
                    129:  *    columns.  In short: don't print a newline and instead pad to the
                    130:  *    right margin.  Used in conjunction with TERMP_NOLPAD.
                    131:  *
1.91      kristaps  132:  *  - TERMP_TWOSPACE: when padding, make sure there are at least two
                    133:  *    space characters of padding.  Otherwise, rather break the line.
                    134:  *
1.84      kristaps  135:  *  - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and
                    136:  *    the line is overrun, and don't pad-right if it's underrun.
                    137:  *
                    138:  *  - TERMP_HANG: like TERMP_DANGLE, but doesn't newline when
                    139:  *    overruning, instead save the position and continue at that point
                    140:  *    when the next invocation.
1.71      kristaps  141:  *
                    142:  *  In-line line breaking:
                    143:  *
                    144:  *  If TERMP_NOBREAK is specified and the line overruns the right
                    145:  *  margin, it will break and pad-right to the right margin after
                    146:  *  writing.  If maxrmargin is violated, it will break and continue
                    147:  *  writing from the right-margin, which will lead to the above
                    148:  *  scenario upon exit.
                    149:  *
                    150:  *  Otherwise, the line will break at the right margin.  Extremely long
                    151:  *  lines will cause the system to emit a warning (TODO: hyphenate, if
                    152:  *  possible).
                    153:  */
                    154: void
                    155: term_flushln(struct termp *p)
1.53      kristaps  156: {
1.71      kristaps  157:        int              i, j;
1.81      kristaps  158:        size_t           vbl, vsz, vis, maxvis, mmax, bp;
1.91      kristaps  159:        static int       overstep = 0;
1.53      kristaps  160:
1.71      kristaps  161:        /*
                    162:         * First, establish the maximum columns of "visible" content.
                    163:         * This is usually the difference between the right-margin and
                    164:         * an indentation, but can be, for tagged lists or columns, a
                    165:         * small set of values.
                    166:         */
1.53      kristaps  167:
1.71      kristaps  168:        assert(p->offset < p->rmargin);
1.92      kristaps  169:        assert((int)(p->rmargin - p->offset) - overstep > 0);
                    170:
                    171:        maxvis = /* LINTED */
                    172:                p->rmargin - p->offset - overstep;
                    173:        mmax = /* LINTED */
                    174:                p->maxrmargin - p->offset - overstep;
                    175:
1.71      kristaps  176:        bp = TERMP_NOBREAK & p->flags ? mmax : maxvis;
                    177:        vis = 0;
1.91      kristaps  178:        overstep = 0;
1.84      kristaps  179:
1.71      kristaps  180:        /*
                    181:         * If in the standard case (left-justified), then begin with our
                    182:         * indentation, otherwise (columns, etc.) just start spitting
                    183:         * out text.
                    184:         */
1.53      kristaps  185:
1.71      kristaps  186:        if ( ! (p->flags & TERMP_NOLPAD))
                    187:                /* LINTED */
                    188:                for (j = 0; j < (int)p->offset; j++)
                    189:                        putchar(' ');
                    190:
                    191:        for (i = 0; i < (int)p->col; i++) {
                    192:                /*
                    193:                 * Count up visible word characters.  Control sequences
                    194:                 * (starting with the CSI) aren't counted.  A space
                    195:                 * generates a non-printing word, which is valid (the
                    196:                 * space is printed according to regular spacing rules).
                    197:                 */
                    198:
                    199:                /* LINTED */
                    200:                for (j = i, vsz = 0; j < (int)p->col; j++) {
1.93      kristaps  201:                        if (j && ' ' == p->buf[j])
1.71      kristaps  202:                                break;
                    203:                        else if (8 == p->buf[j])
1.89      kristaps  204:                                vsz--;
1.71      kristaps  205:                        else
                    206:                                vsz++;
                    207:                }
1.53      kristaps  208:
1.71      kristaps  209:                /*
1.81      kristaps  210:                 * Choose the number of blanks to prepend: no blank at the
                    211:                 * beginning of a line, one between words -- but do not
                    212:                 * actually write them yet.
1.71      kristaps  213:                 */
1.81      kristaps  214:                vbl = (size_t)(0 == vis ? 0 : 1);
1.71      kristaps  215:
1.81      kristaps  216:                /*
                    217:                 * Find out whether we would exceed the right margin.
                    218:                 * If so, break to the next line.  (TODO: hyphenate)
                    219:                 * Otherwise, write the chosen number of blanks now.
                    220:                 */
                    221:                if (vis && vis + vbl + vsz > bp) {
                    222:                        putchar('\n');
                    223:                        if (TERMP_NOBREAK & p->flags) {
                    224:                                for (j = 0; j < (int)p->rmargin; j++)
                    225:                                        putchar(' ');
                    226:                                vis = p->rmargin - p->offset;
                    227:                        } else {
1.71      kristaps  228:                                for (j = 0; j < (int)p->offset; j++)
                    229:                                        putchar(' ');
                    230:                                vis = 0;
1.81      kristaps  231:                        }
                    232:                } else {
                    233:                        for (j = 0; j < (int)vbl; j++)
1.71      kristaps  234:                                putchar(' ');
1.81      kristaps  235:                        vis += vbl;
1.71      kristaps  236:                }
1.53      kristaps  237:
1.78      kristaps  238:                /*
1.81      kristaps  239:                 * Finally, write out the word.
1.71      kristaps  240:                 */
                    241:                for ( ; i < (int)p->col; i++) {
                    242:                        if (' ' == p->buf[i])
                    243:                                break;
                    244:                        putchar(p->buf[i]);
                    245:                }
                    246:                vis += vsz;
                    247:        }
1.91      kristaps  248:        p->col = 0;
1.15      kristaps  249:
1.91      kristaps  250:        if ( ! (TERMP_NOBREAK & p->flags)) {
                    251:                putchar('\n');
1.15      kristaps  252:                return;
1.71      kristaps  253:        }
1.15      kristaps  254:
1.91      kristaps  255:        if (TERMP_HANG & p->flags) {
                    256:                /* We need one blank after the tag. */
1.92      kristaps  257:                overstep = /* LINTED */
                    258:                        vis - maxvis + 1;
1.91      kristaps  259:
                    260:                /*
                    261:                 * Behave exactly the same way as groff:
1.92      kristaps  262:                 * If we have overstepped the margin, temporarily move
                    263:                 * it to the right and flag the rest of the line to be
                    264:                 * shorter.
1.91      kristaps  265:                 * If we landed right at the margin, be happy.
1.92      kristaps  266:                 * If we are one step before the margin, temporarily
                    267:                 * move it one step LEFT and flag the rest of the line
                    268:                 * to be longer.
1.91      kristaps  269:                 */
1.92      kristaps  270:                if (overstep >= -1) {
                    271:                        assert((int)maxvis + overstep >= 0);
                    272:                        /* LINTED */
1.91      kristaps  273:                        maxvis += overstep;
1.92      kristaps  274:                } else
1.91      kristaps  275:                        overstep = 0;
                    276:
                    277:        } else if (TERMP_DANGLE & p->flags)
                    278:                return;
1.15      kristaps  279:
1.92      kristaps  280:        /* Right-pad. */
                    281:        if (maxvis > vis + /* LINTED */
                    282:                        ((TERMP_TWOSPACE & p->flags) ? 1 : 0))
1.91      kristaps  283:                for ( ; vis < maxvis; vis++)
                    284:                        putchar(' ');
1.92      kristaps  285:        else {  /* ...or newline break. */
1.71      kristaps  286:                putchar('\n');
1.91      kristaps  287:                for (i = 0; i < (int)p->rmargin; i++)
                    288:                        putchar(' ');
                    289:        }
1.15      kristaps  290: }
                    291:
                    292:
1.71      kristaps  293: /*
                    294:  * A newline only breaks an existing line; it won't assert vertical
                    295:  * space.  All data in the output buffer is flushed prior to the newline
                    296:  * assertion.
                    297:  */
                    298: void
                    299: term_newln(struct termp *p)
1.15      kristaps  300: {
                    301:
1.71      kristaps  302:        p->flags |= TERMP_NOSPACE;
                    303:        if (0 == p->col) {
                    304:                p->flags &= ~TERMP_NOLPAD;
1.15      kristaps  305:                return;
1.16      kristaps  306:        }
1.71      kristaps  307:        term_flushln(p);
                    308:        p->flags &= ~TERMP_NOLPAD;
1.16      kristaps  309: }
                    310:
                    311:
1.71      kristaps  312: /*
                    313:  * Asserts a vertical space (a full, empty line-break between lines).
                    314:  * Note that if used twice, this will cause two blank spaces and so on.
                    315:  * All data in the output buffer is flushed prior to the newline
                    316:  * assertion.
                    317:  */
                    318: void
                    319: term_vspace(struct termp *p)
1.16      kristaps  320: {
                    321:
1.62      kristaps  322:        term_newln(p);
1.71      kristaps  323:        putchar('\n');
1.16      kristaps  324: }
                    325:
                    326:
1.71      kristaps  327: static void
1.95      kristaps  328: do_special(struct termp *p, const char *word, size_t len)
1.17      kristaps  329: {
1.71      kristaps  330:        const char      *rhs;
                    331:        size_t           sz;
1.79      kristaps  332:        int              i;
1.17      kristaps  333:
1.83      kristaps  334:        rhs = term_a2ascii(p->symtab, word, len, &sz);
1.86      kristaps  335:
1.96      kristaps  336:        if (NULL == rhs) {
1.97      kristaps  337: #if 0
1.96      kristaps  338:                fputs("Unknown special character: ", stderr);
                    339:                for (i = 0; i < (int)len; i++)
                    340:                        fputc(word[i], stderr);
                    341:                fputc('\n', stderr);
                    342: #endif
1.94      kristaps  343:                return;
1.96      kristaps  344:        }
1.94      kristaps  345:        for (i = 0; i < (int)sz; i++)
1.95      kristaps  346:                encode(p, rhs[i]);
1.94      kristaps  347: }
                    348:
                    349:
                    350: static void
1.95      kristaps  351: do_reserved(struct termp *p, const char *word, size_t len)
1.94      kristaps  352: {
                    353:        const char      *rhs;
                    354:        size_t           sz;
                    355:        int              i;
                    356:
                    357:        rhs = term_a2res(p->symtab, word, len, &sz);
                    358:
1.96      kristaps  359:        if (NULL == rhs) {
                    360: #if 0
                    361:                fputs("Unknown reserved word: ", stderr);
                    362:                for (i = 0; i < (int)len; i++)
                    363:                        fputc(word[i], stderr);
                    364:                fputc('\n', stderr);
                    365: #endif
1.94      kristaps  366:                return;
1.96      kristaps  367:        }
1.94      kristaps  368:        for (i = 0; i < (int)sz; i++)
1.95      kristaps  369:                encode(p, rhs[i]);
1.17      kristaps  370: }
                    371:
                    372:
1.71      kristaps  373: /*
                    374:  * Handle an escape sequence: determine its length and pass it to the
                    375:  * escape-symbol look table.  Note that we assume mdoc(3) has validated
                    376:  * the escape sequence (we assert upon badly-formed escape sequences).
                    377:  */
                    378: static void
1.95      kristaps  379: do_escaped(struct termp *p, const char **word)
1.17      kristaps  380: {
1.97      kristaps  381:        int              j, type;
1.86      kristaps  382:        const char      *wp;
                    383:
                    384:        wp = *word;
1.97      kristaps  385:        type = 1;
1.17      kristaps  386:
1.86      kristaps  387:        if (0 == *(++wp)) {
                    388:                *word = wp;
1.71      kristaps  389:                return;
1.86      kristaps  390:        }
1.17      kristaps  391:
1.86      kristaps  392:        if ('(' == *wp) {
                    393:                wp++;
                    394:                if (0 == *wp || 0 == *(wp + 1)) {
                    395:                        *word = 0 == *wp ? wp : wp + 1;
1.71      kristaps  396:                        return;
1.86      kristaps  397:                }
1.22      kristaps  398:
1.95      kristaps  399:                do_special(p, wp, 2);
1.86      kristaps  400:                *word = ++wp;
1.71      kristaps  401:                return;
1.22      kristaps  402:
1.86      kristaps  403:        } else if ('*' == *wp) {
                    404:                if (0 == *(++wp)) {
                    405:                        *word = wp;
1.71      kristaps  406:                        return;
1.86      kristaps  407:                }
1.22      kristaps  408:
1.86      kristaps  409:                switch (*wp) {
1.71      kristaps  410:                case ('('):
1.86      kristaps  411:                        wp++;
                    412:                        if (0 == *wp || 0 == *(wp + 1)) {
                    413:                                *word = 0 == *wp ? wp : wp + 1;
1.71      kristaps  414:                                return;
1.86      kristaps  415:                        }
1.65      kristaps  416:
1.95      kristaps  417:                        do_reserved(p, wp, 2);
1.86      kristaps  418:                        *word = ++wp;
1.71      kristaps  419:                        return;
                    420:                case ('['):
1.97      kristaps  421:                        type = 0;
1.71      kristaps  422:                        break;
                    423:                default:
1.95      kristaps  424:                        do_reserved(p, wp, 1);
1.86      kristaps  425:                        *word = wp;
1.71      kristaps  426:                        return;
                    427:                }
                    428:
1.86      kristaps  429:        } else if ('f' == *wp) {
                    430:                if (0 == *(++wp)) {
                    431:                        *word = wp;
1.71      kristaps  432:                        return;
1.86      kristaps  433:                }
                    434:
                    435:                switch (*wp) {
1.71      kristaps  436:                case ('B'):
1.98      kristaps  437:                        p->bold++;
1.71      kristaps  438:                        break;
                    439:                case ('I'):
1.98      kristaps  440:                        p->under++;
1.71      kristaps  441:                        break;
                    442:                case ('P'):
                    443:                        /* FALLTHROUGH */
                    444:                case ('R'):
1.98      kristaps  445:                        p->bold = p->under = 0;
1.71      kristaps  446:                        break;
                    447:                default:
                    448:                        break;
                    449:                }
1.86      kristaps  450:
                    451:                *word = wp;
1.71      kristaps  452:                return;
1.22      kristaps  453:
1.86      kristaps  454:        } else if ('[' != *wp) {
1.95      kristaps  455:                do_special(p, wp, 1);
1.86      kristaps  456:                *word = wp;
1.71      kristaps  457:                return;
                    458:        }
1.28      kristaps  459:
1.86      kristaps  460:        wp++;
                    461:        for (j = 0; *wp && ']' != *wp; wp++, j++)
1.71      kristaps  462:                /* Loop... */ ;
1.28      kristaps  463:
1.86      kristaps  464:        if (0 == *wp) {
                    465:                *word = wp;
1.71      kristaps  466:                return;
1.86      kristaps  467:        }
1.48      kristaps  468:
1.97      kristaps  469:        if (type)
                    470:                do_special(p, wp - j, (size_t)j);
                    471:        else
                    472:                do_reserved(p, wp - j, (size_t)j);
1.86      kristaps  473:        *word = wp;
1.48      kristaps  474: }
                    475:
                    476:
1.71      kristaps  477: /*
                    478:  * Handle pwords, partial words, which may be either a single word or a
                    479:  * phrase that cannot be broken down (such as a literal string).  This
                    480:  * handles word styling.
                    481:  */
1.86      kristaps  482: void
                    483: term_word(struct termp *p, const char *word)
1.65      kristaps  484: {
1.88      kristaps  485:        const char       *sv;
1.71      kristaps  486:
1.100   ! kristaps  487:        sv = word;
        !           488:
        !           489:        if (word[0] && 0 == word[1])
        !           490:                switch (word[0]) {
        !           491:                case('.'):
        !           492:                        /* FALLTHROUGH */
        !           493:                case(','):
        !           494:                        /* FALLTHROUGH */
        !           495:                case(';'):
        !           496:                        /* FALLTHROUGH */
        !           497:                case(':'):
        !           498:                        /* FALLTHROUGH */
        !           499:                case('?'):
        !           500:                        /* FALLTHROUGH */
        !           501:                case('!'):
        !           502:                        /* FALLTHROUGH */
        !           503:                case(')'):
        !           504:                        /* FALLTHROUGH */
        !           505:                case(']'):
        !           506:                        /* FALLTHROUGH */
        !           507:                case('}'):
        !           508:                        if ( ! (TERMP_IGNDELIM & p->flags))
        !           509:                                p->flags |= TERMP_NOSPACE;
        !           510:                        break;
        !           511:                default:
        !           512:                        break;
        !           513:                }
1.65      kristaps  514:
1.71      kristaps  515:        if ( ! (TERMP_NOSPACE & p->flags))
1.95      kristaps  516:                buffer(p, ' ');
1.65      kristaps  517:
1.71      kristaps  518:        if ( ! (p->flags & TERMP_NONOSPACE))
                    519:                p->flags &= ~TERMP_NOSPACE;
1.65      kristaps  520:
1.100   ! kristaps  521:        for ( ; *word; word++)
1.86      kristaps  522:                if ('\\' != *word)
1.95      kristaps  523:                        encode(p, *word);
1.79      kristaps  524:                else
1.95      kristaps  525:                        do_escaped(p, &word);
1.65      kristaps  526:
1.100   ! kristaps  527:        if (sv[0] && 0 == sv[1])
        !           528:                switch (sv[0]) {
        !           529:                case('('):
        !           530:                        /* FALLTHROUGH */
        !           531:                case('['):
        !           532:                        /* FALLTHROUGH */
        !           533:                case('{'):
        !           534:                        p->flags |= TERMP_NOSPACE;
        !           535:                        break;
        !           536:                default:
        !           537:                        break;
        !           538:                }
1.65      kristaps  539: }
                    540:
                    541:
1.71      kristaps  542: /*
                    543:  * Insert a single character into the line-buffer.  If the buffer's
                    544:  * space is exceeded, then allocate more space by doubling the buffer
                    545:  * size.
                    546:  */
                    547: static void
1.95      kristaps  548: buffer(struct termp *p, char c)
1.51      kristaps  549: {
1.71      kristaps  550:        size_t           s;
1.51      kristaps  551:
1.71      kristaps  552:        if (p->col + 1 >= p->maxcols) {
                    553:                if (0 == p->maxcols)
                    554:                        p->maxcols = 256;
                    555:                s = p->maxcols * 2;
                    556:                p->buf = realloc(p->buf, s);
                    557:                if (NULL == p->buf)
1.98      kristaps  558:                        err(1, "realloc"); /* FIXME: shouldn't be here! */
1.71      kristaps  559:                p->maxcols = s;
                    560:        }
                    561:        p->buf[(int)(p->col)++] = c;
1.51      kristaps  562: }
                    563:
1.79      kristaps  564:
                    565: static void
1.95      kristaps  566: encode(struct termp *p, char c)
1.79      kristaps  567: {
1.89      kristaps  568:
1.98      kristaps  569:        if (' ' != c) {
                    570:                if (p->bold) {
1.95      kristaps  571:                        buffer(p, c);
                    572:                        buffer(p, 8);
1.79      kristaps  573:                }
1.98      kristaps  574:                if (p->under) {
1.95      kristaps  575:                        buffer(p, '_');
                    576:                        buffer(p, 8);
1.79      kristaps  577:                }
                    578:        }
1.95      kristaps  579:        buffer(p, c);
1.79      kristaps  580: }

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