=================================================================== RCS file: /cvs/mandoc/man_term.c,v retrieving revision 1.2 retrieving revision 1.209 diff -u -p -r1.2 -r1.209 --- mandoc/man_term.c 2009/03/26 14:44:41 1.2 +++ mandoc/man_term.c 2017/07/31 15:19:06 1.209 @@ -1,374 +1,1101 @@ -/* $Id: man_term.c,v 1.2 2009/03/26 14:44:41 kristaps Exp $ */ +/* $Id: man_term.c,v 1.209 2017/07/31 15:19:06 schwarze Exp $ */ /* - * Copyright (c) 2008, 2009 Kristaps Dzonsons + * Copyright (c) 2008-2012 Kristaps Dzonsons + * Copyright (c) 2010-2015, 2017 Ingo Schwarze * * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the - * above copyright notice and this permission notice appear in all - * copies. + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE - * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include "config.h" + +#include + #include -#include +#include +#include #include #include #include -#include "term.h" +#include "mandoc_aux.h" +#include "mandoc.h" +#include "roff.h" #include "man.h" +#include "out.h" +#include "term.h" +#include "main.h" -#ifdef __linux__ -extern size_t strlcpy(char *, const char *, size_t); -extern size_t strlcat(char *, const char *, size_t); -#endif +#define MAXMARGINS 64 /* maximum number of indented scopes */ -#define DECL_ARGS struct termp *p, \ - const struct man_node *n, \ - const struct man_meta *m +struct mtermp { + int fl; +#define MANT_LITERAL (1 << 0) + int lmargin[MAXMARGINS]; /* margins (incl. vis. page) */ + int lmargincur; /* index of current margin */ + int lmarginsz; /* actual number of nested margins */ + size_t offset; /* default offset to visible page */ + int pardist; /* vert. space before par., unit: [v] */ +}; +#define DECL_ARGS struct termp *p, \ + struct mtermp *mt, \ + struct roff_node *n, \ + const struct roff_meta *meta + struct termact { int (*pre)(DECL_ARGS); void (*post)(DECL_ARGS); + int flags; +#define MAN_NOTEXT (1 << 0) /* Never has text children. */ }; +static void print_man_nodelist(DECL_ARGS); +static void print_man_node(DECL_ARGS); +static void print_man_head(struct termp *, + const struct roff_meta *); +static void print_man_foot(struct termp *, + const struct roff_meta *); +static void print_bvspace(struct termp *, + const struct roff_node *, int); + static int pre_B(DECL_ARGS); +static int pre_DT(DECL_ARGS); +static int pre_HP(DECL_ARGS); static int pre_I(DECL_ARGS); +static int pre_IP(DECL_ARGS); +static int pre_OP(DECL_ARGS); +static int pre_PD(DECL_ARGS); static int pre_PP(DECL_ARGS); +static int pre_RS(DECL_ARGS); static int pre_SH(DECL_ARGS); static int pre_SS(DECL_ARGS); static int pre_TP(DECL_ARGS); +static int pre_UR(DECL_ARGS); +static int pre_alternate(DECL_ARGS); +static int pre_ign(DECL_ARGS); +static int pre_in(DECL_ARGS); +static int pre_literal(DECL_ARGS); -static void post_B(DECL_ARGS); -static void post_I(DECL_ARGS); +static void post_IP(DECL_ARGS); +static void post_HP(DECL_ARGS); +static void post_RS(DECL_ARGS); static void post_SH(DECL_ARGS); static void post_SS(DECL_ARGS); +static void post_TP(DECL_ARGS); +static void post_UR(DECL_ARGS); -static const struct termact termacts[MAN_MAX] = { - { NULL, NULL }, /* __ */ - { NULL, NULL }, /* TH */ - { pre_SH, post_SH }, /* SH */ - { pre_SS, post_SS }, /* SS */ - { pre_TP, NULL }, /* TP */ - { pre_PP, NULL }, /* LP */ - { pre_PP, NULL }, /* PP */ - { pre_PP, NULL }, /* P */ - { NULL, NULL }, /* IP */ - { pre_PP, NULL }, /* HP */ /* XXX */ - { NULL, NULL }, /* SM */ - { pre_B, post_B }, /* SB */ - { NULL, NULL }, /* BI */ - { NULL, NULL }, /* IB */ - { NULL, NULL }, /* BR */ - { NULL, NULL }, /* RB */ - { NULL, NULL }, /* R */ - { pre_B, post_B }, /* B */ - { pre_I, post_I }, /* I */ - { NULL, NULL }, /* IR */ - { NULL, NULL }, /* RI */ +static const struct termact __termacts[MAN_MAX - MAN_TH] = { + { NULL, NULL, 0 }, /* TH */ + { pre_SH, post_SH, 0 }, /* SH */ + { pre_SS, post_SS, 0 }, /* SS */ + { pre_TP, post_TP, 0 }, /* TP */ + { pre_PP, NULL, 0 }, /* LP */ + { pre_PP, NULL, 0 }, /* PP */ + { pre_PP, NULL, 0 }, /* P */ + { pre_IP, post_IP, 0 }, /* IP */ + { pre_HP, post_HP, 0 }, /* HP */ + { NULL, NULL, 0 }, /* SM */ + { pre_B, NULL, 0 }, /* SB */ + { pre_alternate, NULL, 0 }, /* BI */ + { pre_alternate, NULL, 0 }, /* IB */ + { pre_alternate, NULL, 0 }, /* BR */ + { pre_alternate, NULL, 0 }, /* RB */ + { NULL, NULL, 0 }, /* R */ + { pre_B, NULL, 0 }, /* B */ + { pre_I, NULL, 0 }, /* I */ + { pre_alternate, NULL, 0 }, /* IR */ + { pre_alternate, NULL, 0 }, /* RI */ + { pre_literal, NULL, 0 }, /* nf */ + { pre_literal, NULL, 0 }, /* fi */ + { NULL, NULL, 0 }, /* RE */ + { pre_RS, post_RS, 0 }, /* RS */ + { pre_DT, NULL, 0 }, /* DT */ + { pre_ign, NULL, MAN_NOTEXT }, /* UC */ + { pre_PD, NULL, MAN_NOTEXT }, /* PD */ + { pre_ign, NULL, 0 }, /* AT */ + { pre_in, NULL, MAN_NOTEXT }, /* in */ + { pre_OP, NULL, 0 }, /* OP */ + { pre_literal, NULL, 0 }, /* EX */ + { pre_literal, NULL, 0 }, /* EE */ + { pre_UR, post_UR, 0 }, /* UR */ + { NULL, NULL, 0 }, /* UE */ + { pre_UR, post_UR, 0 }, /* MT */ + { NULL, NULL, 0 }, /* ME */ }; +static const struct termact *termacts = __termacts - MAN_TH; -static void print_head(struct termp *, - const struct man_meta *); -static void print_body(DECL_ARGS); -static void print_node(DECL_ARGS); -static void print_foot(struct termp *, - const struct man_meta *); +void +terminal_man(void *arg, const struct roff_man *man) +{ + struct termp *p; + struct roff_node *n; + struct mtermp mt; + size_t save_defindent; -int -man_run(struct termp *p, const struct man *m) + p = (struct termp *)arg; + save_defindent = p->defindent; + if (p->synopsisonly == 0 && p->defindent == 0) + p->defindent = 7; + p->tcol->rmargin = p->maxrmargin = p->defrmargin; + term_tab_set(p, NULL); + term_tab_set(p, "T"); + term_tab_set(p, ".5i"); + + memset(&mt, 0, sizeof(struct mtermp)); + mt.lmargin[mt.lmargincur] = term_len(p, p->defindent); + mt.offset = term_len(p, p->defindent); + mt.pardist = 1; + + n = man->first->child; + if (p->synopsisonly) { + while (n != NULL) { + if (n->tok == MAN_SH && + n->child->child->type == ROFFT_TEXT && + !strcmp(n->child->child->string, "SYNOPSIS")) { + if (n->child->next->child != NULL) + print_man_nodelist(p, &mt, + n->child->next->child, + &man->meta); + term_newln(p); + break; + } + n = n->next; + } + } else { + term_begin(p, print_man_head, print_man_foot, &man->meta); + p->flags |= TERMP_NOSPACE; + if (n != NULL) + print_man_nodelist(p, &mt, n, &man->meta); + term_end(p); + } + p->defindent = save_defindent; +} + +/* + * Printing leading vertical space before a block. + * This is used for the paragraph macros. + * The rules are pretty simple, since there's very little nesting going + * on here. Basically, if we're the first within another block (SS/SH), + * then don't emit vertical space. If we are (RS), then do. If not the + * first, print it. + */ +static void +print_bvspace(struct termp *p, const struct roff_node *n, int pardist) { + int i; - print_head(p, man_meta(m)); - p->flags |= TERMP_NOSPACE; - print_body(p, man_node(m), man_meta(m)); - print_foot(p, man_meta(m)); + term_newln(p); - return(1); + if (n->body && n->body->child) + if (n->body->child->type == ROFFT_TBL) + return; + + if (n->parent->type == ROFFT_ROOT || n->parent->tok != MAN_RS) + if (NULL == n->prev) + return; + + for (i = 0; i < pardist; i++) + term_vspace(p); } static int +pre_ign(DECL_ARGS) +{ + + return 0; +} + +static int pre_I(DECL_ARGS) { - p->flags |= TERMP_UNDER; - return(1); + term_fontrepl(p, TERMFONT_UNDER); + return 1; } +static int +pre_literal(DECL_ARGS) +{ -static void -post_I(DECL_ARGS) + term_newln(p); + + if (n->tok == MAN_nf || n->tok == MAN_EX) + mt->fl |= MANT_LITERAL; + else + mt->fl &= ~MANT_LITERAL; + + /* + * Unlike .IP and .TP, .HP does not have a HEAD. + * So in case a second call to term_flushln() is needed, + * indentation has to be set up explicitly. + */ + if (n->parent->tok == MAN_HP && p->tcol->rmargin < p->maxrmargin) { + p->tcol->offset = p->tcol->rmargin; + p->tcol->rmargin = p->maxrmargin; + p->trailspace = 0; + p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND); + p->flags |= TERMP_NOSPACE; + } + + return 0; +} + +static int +pre_PD(DECL_ARGS) { + struct roffsu su; - p->flags &= ~TERMP_UNDER; + n = n->child; + if (n == NULL) { + mt->pardist = 1; + return 0; + } + assert(n->type == ROFFT_TEXT); + if (a2roffsu(n->string, &su, SCALE_VS) != NULL) + mt->pardist = term_vspan(p, &su); + return 0; } +static int +pre_alternate(DECL_ARGS) +{ + enum termfont font[2]; + struct roff_node *nn; + int savelit, i; + switch (n->tok) { + case MAN_RB: + font[0] = TERMFONT_NONE; + font[1] = TERMFONT_BOLD; + break; + case MAN_RI: + font[0] = TERMFONT_NONE; + font[1] = TERMFONT_UNDER; + break; + case MAN_BR: + font[0] = TERMFONT_BOLD; + font[1] = TERMFONT_NONE; + break; + case MAN_BI: + font[0] = TERMFONT_BOLD; + font[1] = TERMFONT_UNDER; + break; + case MAN_IR: + font[0] = TERMFONT_UNDER; + font[1] = TERMFONT_NONE; + break; + case MAN_IB: + font[0] = TERMFONT_UNDER; + font[1] = TERMFONT_BOLD; + break; + default: + abort(); + } + + savelit = MANT_LITERAL & mt->fl; + mt->fl &= ~MANT_LITERAL; + + for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) { + term_fontrepl(p, font[i]); + if (savelit && NULL == nn->next) + mt->fl |= MANT_LITERAL; + assert(nn->type == ROFFT_TEXT); + term_word(p, nn->string); + if (nn->flags & NODE_EOS) + p->flags |= TERMP_SENTENCE; + if (nn->next) + p->flags |= TERMP_NOSPACE; + } + + return 0; +} + static int pre_B(DECL_ARGS) { - p->flags |= TERMP_BOLD; - return(1); + term_fontrepl(p, TERMFONT_BOLD); + return 1; } +static int +pre_OP(DECL_ARGS) +{ -static void -post_B(DECL_ARGS) + term_word(p, "["); + p->flags |= TERMP_NOSPACE; + + if (NULL != (n = n->child)) { + term_fontrepl(p, TERMFONT_BOLD); + term_word(p, n->string); + } + if (NULL != n && NULL != n->next) { + term_fontrepl(p, TERMFONT_UNDER); + term_word(p, n->next->string); + } + + term_fontrepl(p, TERMFONT_NONE); + p->flags |= TERMP_NOSPACE; + term_word(p, "]"); + return 0; +} + +static int +pre_in(DECL_ARGS) { + struct roffsu su; + const char *cp; + size_t v; + int less; - p->flags &= ~TERMP_BOLD; + term_newln(p); + + if (n->child == NULL) { + p->tcol->offset = mt->offset; + return 0; + } + + cp = n->child->string; + less = 0; + + if ('-' == *cp) + less = -1; + else if ('+' == *cp) + less = 1; + else + cp--; + + if (a2roffsu(++cp, &su, SCALE_EN) == NULL) + return 0; + + v = term_hen(p, &su); + + if (less < 0) + p->tcol->offset -= p->tcol->offset > v ? v : p->tcol->offset; + else if (less > 0) + p->tcol->offset += v; + else + p->tcol->offset = v; + if (p->tcol->offset > SHRT_MAX) + p->tcol->offset = term_len(p, p->defindent); + + return 0; } +static int +pre_DT(DECL_ARGS) +{ + term_tab_set(p, NULL); + term_tab_set(p, "T"); + term_tab_set(p, ".5i"); + return 0; +} static int +pre_HP(DECL_ARGS) +{ + struct roffsu su; + const struct roff_node *nn; + int len; + + switch (n->type) { + case ROFFT_BLOCK: + print_bvspace(p, n, mt->pardist); + return 1; + case ROFFT_BODY: + break; + default: + return 0; + } + + if ( ! (MANT_LITERAL & mt->fl)) { + p->flags |= TERMP_NOBREAK | TERMP_BRIND; + p->trailspace = 2; + } + + /* Calculate offset. */ + + if ((nn = n->parent->head->child) != NULL && + a2roffsu(nn->string, &su, SCALE_EN) != NULL) { + len = term_hen(p, &su); + if (len < 0 && (size_t)(-len) > mt->offset) + len = -mt->offset; + else if (len > SHRT_MAX) + len = term_len(p, p->defindent); + mt->lmargin[mt->lmargincur] = len; + } else + len = mt->lmargin[mt->lmargincur]; + + p->tcol->offset = mt->offset; + p->tcol->rmargin = mt->offset + len; + return 1; +} + +static void +post_HP(DECL_ARGS) +{ + + switch (n->type) { + case ROFFT_BODY: + term_newln(p); + + /* + * Compatibility with a groff bug. + * The .HP macro uses the undocumented .tag request + * which causes a line break and cancels no-space + * mode even if there isn't any output. + */ + + if (n->child == NULL) + term_vspace(p); + + p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND); + p->trailspace = 0; + p->tcol->offset = mt->offset; + p->tcol->rmargin = p->maxrmargin; + break; + default: + break; + } +} + +static int pre_PP(DECL_ARGS) { - term_vspace(p); - p->offset = INDENT; - return(0); + switch (n->type) { + case ROFFT_BLOCK: + mt->lmargin[mt->lmargincur] = term_len(p, p->defindent); + print_bvspace(p, n, mt->pardist); + break; + default: + p->tcol->offset = mt->offset; + break; + } + + return n->type != ROFFT_HEAD; } +static int +pre_IP(DECL_ARGS) +{ + struct roffsu su; + const struct roff_node *nn; + int len, savelit; + switch (n->type) { + case ROFFT_BODY: + p->flags |= TERMP_NOSPACE; + break; + case ROFFT_HEAD: + p->flags |= TERMP_NOBREAK; + p->trailspace = 1; + break; + case ROFFT_BLOCK: + print_bvspace(p, n, mt->pardist); + /* FALLTHROUGH */ + default: + return 1; + } + + /* Calculate the offset from the optional second argument. */ + if ((nn = n->parent->head->child) != NULL && + (nn = nn->next) != NULL && + a2roffsu(nn->string, &su, SCALE_EN) != NULL) { + len = term_hen(p, &su); + if (len < 0 && (size_t)(-len) > mt->offset) + len = -mt->offset; + else if (len > SHRT_MAX) + len = term_len(p, p->defindent); + mt->lmargin[mt->lmargincur] = len; + } else + len = mt->lmargin[mt->lmargincur]; + + switch (n->type) { + case ROFFT_HEAD: + p->tcol->offset = mt->offset; + p->tcol->rmargin = mt->offset + len; + + savelit = MANT_LITERAL & mt->fl; + mt->fl &= ~MANT_LITERAL; + + if (n->child) + print_man_node(p, mt, n->child, meta); + + if (savelit) + mt->fl |= MANT_LITERAL; + + return 0; + case ROFFT_BODY: + p->tcol->offset = mt->offset + len; + p->tcol->rmargin = p->maxrmargin; + break; + default: + break; + } + + return 1; +} + +static void +post_IP(DECL_ARGS) +{ + + switch (n->type) { + case ROFFT_HEAD: + term_flushln(p); + p->flags &= ~TERMP_NOBREAK; + p->trailspace = 0; + p->tcol->rmargin = p->maxrmargin; + break; + case ROFFT_BODY: + term_newln(p); + p->tcol->offset = mt->offset; + break; + default: + break; + } +} + static int pre_TP(DECL_ARGS) { - const struct man_node *nn; - size_t offs; + struct roffsu su; + struct roff_node *nn; + int len, savelit; - term_vspace(p); - p->offset = INDENT; + switch (n->type) { + case ROFFT_HEAD: + p->flags |= TERMP_NOBREAK | TERMP_BRTRSP; + p->trailspace = 1; + break; + case ROFFT_BODY: + p->flags |= TERMP_NOSPACE; + break; + case ROFFT_BLOCK: + print_bvspace(p, n, mt->pardist); + /* FALLTHROUGH */ + default: + return 1; + } - if (NULL == (nn = n->child)) - return(1); + /* Calculate offset. */ - if (nn->line == n->line) { - if (MAN_TEXT != nn->type) - errx(1, "expected text line argument"); - offs = atoi(nn->string); - nn = nn->next; + if ((nn = n->parent->head->child) != NULL && + nn->string != NULL && ! (NODE_LINE & nn->flags) && + a2roffsu(nn->string, &su, SCALE_EN) != NULL) { + len = term_hen(p, &su); + if (len < 0 && (size_t)(-len) > mt->offset) + len = -mt->offset; + else if (len > SHRT_MAX) + len = term_len(p, p->defindent); + mt->lmargin[mt->lmargincur] = len; } else - offs = INDENT; + len = mt->lmargin[mt->lmargincur]; - for ( ; nn; nn = nn->next) - print_node(p, nn, m); + switch (n->type) { + case ROFFT_HEAD: + p->tcol->offset = mt->offset; + p->tcol->rmargin = mt->offset + len; - term_flushln(p); - p->flags |= TERMP_NOSPACE; - p->offset += offs; - return(0); + savelit = MANT_LITERAL & mt->fl; + mt->fl &= ~MANT_LITERAL; + + /* Don't print same-line elements. */ + nn = n->child; + while (NULL != nn && 0 == (NODE_LINE & nn->flags)) + nn = nn->next; + + while (NULL != nn) { + print_man_node(p, mt, nn, meta); + nn = nn->next; + } + + if (savelit) + mt->fl |= MANT_LITERAL; + return 0; + case ROFFT_BODY: + p->tcol->offset = mt->offset + len; + p->tcol->rmargin = p->maxrmargin; + p->trailspace = 0; + p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP); + break; + default: + break; + } + + return 1; } +static void +post_TP(DECL_ARGS) +{ + switch (n->type) { + case ROFFT_HEAD: + term_flushln(p); + break; + case ROFFT_BODY: + term_newln(p); + p->tcol->offset = mt->offset; + break; + default: + break; + } +} + static int pre_SS(DECL_ARGS) { + int i; - term_vspace(p); - p->flags |= TERMP_BOLD; - return(1); -} + switch (n->type) { + case ROFFT_BLOCK: + mt->fl &= ~MANT_LITERAL; + mt->lmargin[mt->lmargincur] = term_len(p, p->defindent); + mt->offset = term_len(p, p->defindent); + /* + * No vertical space before the first subsection + * and after an empty subsection. + */ + do { + n = n->prev; + } while (n != NULL && n->tok >= MAN_TH && + termacts[n->tok].flags & MAN_NOTEXT); + if (n == NULL || (n->tok == MAN_SS && n->body->child == NULL)) + break; + + for (i = 0; i < mt->pardist; i++) + term_vspace(p); + break; + case ROFFT_HEAD: + term_fontrepl(p, TERMFONT_BOLD); + p->tcol->offset = term_len(p, 3); + p->tcol->rmargin = mt->offset; + p->trailspace = mt->offset; + p->flags |= TERMP_NOBREAK | TERMP_BRIND; + break; + case ROFFT_BODY: + p->tcol->offset = mt->offset; + p->tcol->rmargin = p->maxrmargin; + p->trailspace = 0; + p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND); + break; + default: + break; + } + + return 1; +} + static void post_SS(DECL_ARGS) { - - term_flushln(p); - p->flags &= ~TERMP_BOLD; - p->flags |= TERMP_NOSPACE; + + switch (n->type) { + case ROFFT_HEAD: + term_newln(p); + break; + case ROFFT_BODY: + term_newln(p); + break; + default: + break; + } } - static int pre_SH(DECL_ARGS) { + int i; - term_vspace(p); - p->offset = 0; - p->flags |= TERMP_BOLD; - return(1); -} + switch (n->type) { + case ROFFT_BLOCK: + mt->fl &= ~MANT_LITERAL; + mt->lmargin[mt->lmargincur] = term_len(p, p->defindent); + mt->offset = term_len(p, p->defindent); + /* + * No vertical space before the first section + * and after an empty section. + */ -static void -post_SH(DECL_ARGS) -{ - - term_flushln(p); - p->offset = INDENT; - p->flags &= ~TERMP_BOLD; - p->flags |= TERMP_NOSPACE; -} + do { + n = n->prev; + } while (n != NULL && n->tok >= MAN_TH && + termacts[n->tok].flags & MAN_NOTEXT); + if (n == NULL || (n->tok == MAN_SH && n->body->child == NULL)) + break; + for (i = 0; i < mt->pardist; i++) + term_vspace(p); + break; + case ROFFT_HEAD: + term_fontrepl(p, TERMFONT_BOLD); + p->tcol->offset = 0; + p->tcol->rmargin = mt->offset; + p->trailspace = mt->offset; + p->flags |= TERMP_NOBREAK | TERMP_BRIND; + break; + case ROFFT_BODY: + p->tcol->offset = mt->offset; + p->tcol->rmargin = p->maxrmargin; + p->trailspace = 0; + p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND); + break; + default: + break; + } + return 1; +} + static void -print_node(DECL_ARGS) +post_SH(DECL_ARGS) { - int c; - c = 1; - switch (n->type) { - case(MAN_ELEM): - if (termacts[n->tok].pre) - c = (*termacts[n->tok].pre)(p, n, m); + case ROFFT_HEAD: + term_newln(p); break; - case(MAN_TEXT): - if (*n->string) { - term_word(p, n->string); - break; - } - term_vspace(p); + case ROFFT_BODY: + term_newln(p); break; default: break; } +} - if (c && n->child) - print_body(p, n->child, m); +static int +pre_RS(DECL_ARGS) +{ + struct roffsu su; switch (n->type) { - case (MAN_ELEM): - if (termacts[n->tok].post) - (*termacts[n->tok].post)(p, n, m); + case ROFFT_BLOCK: + term_newln(p); + return 1; + case ROFFT_HEAD: + return 0; + default: break; + } + + n = n->parent->head; + n->aux = SHRT_MAX + 1; + if (n->child == NULL) + n->aux = mt->lmargin[mt->lmargincur]; + else if (a2roffsu(n->child->string, &su, SCALE_EN) != NULL) + n->aux = term_hen(p, &su); + if (n->aux < 0 && (size_t)(-n->aux) > mt->offset) + n->aux = -mt->offset; + else if (n->aux > SHRT_MAX) + n->aux = term_len(p, p->defindent); + + mt->offset += n->aux; + p->tcol->offset = mt->offset; + p->tcol->rmargin = p->maxrmargin; + + if (++mt->lmarginsz < MAXMARGINS) + mt->lmargincur = mt->lmarginsz; + + mt->lmargin[mt->lmargincur] = term_len(p, p->defindent); + return 1; +} + +static void +post_RS(DECL_ARGS) +{ + + switch (n->type) { + case ROFFT_BLOCK: + return; + case ROFFT_HEAD: + return; default: + term_newln(p); break; } + + mt->offset -= n->parent->head->aux; + p->tcol->offset = mt->offset; + + if (--mt->lmarginsz < MAXMARGINS) + mt->lmargincur = mt->lmarginsz; } +static int +pre_UR(DECL_ARGS) +{ + return n->type != ROFFT_HEAD; +} + static void -print_body(DECL_ARGS) +post_UR(DECL_ARGS) { - print_node(p, n, m); - if ( ! n->next) + + if (n->type != ROFFT_BLOCK) return; - print_body(p, n->next, m); + + term_word(p, "<"); + p->flags |= TERMP_NOSPACE; + + if (NULL != n->child->child) + print_man_node(p, mt, n->child->child, meta); + + p->flags |= TERMP_NOSPACE; + term_word(p, ">"); } +static void +print_man_node(DECL_ARGS) +{ + int c; + switch (n->type) { + case ROFFT_TEXT: + /* + * If we have a blank line, output a vertical space. + * If we have a space as the first character, break + * before printing the line's data. + */ + if (*n->string == '\0') { + if (p->flags & TERMP_NONEWLINE) + term_newln(p); + else + term_vspace(p); + return; + } else if (*n->string == ' ' && n->flags & NODE_LINE && + (p->flags & TERMP_NONEWLINE) == 0) + term_newln(p); + + term_word(p, n->string); + goto out; + + case ROFFT_EQN: + if ( ! (n->flags & NODE_LINE)) + p->flags |= TERMP_NOSPACE; + term_eqn(p, n->eqn); + if (n->next != NULL && ! (n->next->flags & NODE_LINE)) + p->flags |= TERMP_NOSPACE; + return; + case ROFFT_TBL: + if (p->tbl.cols == NULL) + term_vspace(p); + term_tbl(p, n->span); + return; + default: + break; + } + + if (n->tok < ROFF_MAX) { + roff_term_pre(p, n); + return; + } + + assert(n->tok >= MAN_TH && n->tok <= MAN_MAX); + if ( ! (MAN_NOTEXT & termacts[n->tok].flags)) + term_fontrepl(p, TERMFONT_NONE); + + c = 1; + if (termacts[n->tok].pre) + c = (*termacts[n->tok].pre)(p, mt, n, meta); + + if (c && n->child) + print_man_nodelist(p, mt, n->child, meta); + + if (termacts[n->tok].post) + (*termacts[n->tok].post)(p, mt, n, meta); + if ( ! (MAN_NOTEXT & termacts[n->tok].flags)) + term_fontrepl(p, TERMFONT_NONE); + +out: + /* + * If we're in a literal context, make sure that words + * together on the same line stay together. This is a + * POST-printing call, so we check the NEXT word. Since + * -man doesn't have nested macros, we don't need to be + * more specific than this. + */ + if (mt->fl & MANT_LITERAL && + ! (p->flags & (TERMP_NOBREAK | TERMP_NONEWLINE)) && + (n->next == NULL || n->next->flags & NODE_LINE)) { + p->flags |= TERMP_BRNEVER | TERMP_NOSPACE; + if (n->string != NULL && *n->string != '\0') + term_flushln(p); + else + term_newln(p); + p->flags &= ~TERMP_BRNEVER; + if (p->tcol->rmargin < p->maxrmargin && + n->parent->tok == MAN_HP) { + p->tcol->offset = p->tcol->rmargin; + p->tcol->rmargin = p->maxrmargin; + } + } + if (NODE_EOS & n->flags) + p->flags |= TERMP_SENTENCE; +} + + static void -print_foot(struct termp *p, const struct man_meta *meta) +print_man_nodelist(DECL_ARGS) { - struct tm *tm; - char *buf; - if (NULL == (buf = malloc(p->rmargin))) - err(1, "malloc"); + while (n != NULL) { + print_man_node(p, mt, n, meta); + n = n->next; + } +} - tm = localtime(&meta->date); +static void +print_man_foot(struct termp *p, const struct roff_meta *meta) +{ + char *title; + size_t datelen, titlen; -#ifdef __OpenBSD__ - if (NULL == strftime(buf, p->rmargin, "%B %d, %Y", tm)) -#else - if (0 == strftime(buf, p->rmargin, "%B %d, %Y", tm)) -#endif - err(1, "strftime"); + assert(meta->title); + assert(meta->msec); + assert(meta->date); + term_fontrepl(p, TERMFONT_NONE); + + if (meta->hasbody) + term_vspace(p); + /* - * This is /slightly/ different from regular groff output - * because we don't have page numbers. Print the following: - * - * OS MDOCDATE + * Temporary, undocumented option to imitate mdoc(7) output. + * In the bottom right corner, use the operating system + * instead of the title. */ - term_vspace(p); + if ( ! p->mdocstyle) { + if (meta->hasbody) { + term_vspace(p); + term_vspace(p); + } + mandoc_asprintf(&title, "%s(%s)", + meta->title, meta->msec); + } else if (meta->os) { + title = mandoc_strdup(meta->os); + } else { + title = mandoc_strdup(""); + } + datelen = term_strlen(p, meta->date); + /* Bottom left corner: operating system. */ + p->flags |= TERMP_NOSPACE | TERMP_NOBREAK; - p->rmargin = p->maxrmargin - strlen(buf); - p->offset = 0; + p->trailspace = 1; + p->tcol->offset = 0; + p->tcol->rmargin = p->maxrmargin > datelen ? + (p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0; - if (meta->source) - term_word(p, meta->source); - if (meta->source) - term_word(p, ""); + if (meta->os) + term_word(p, meta->os); term_flushln(p); - p->flags |= TERMP_NOLPAD | TERMP_NOSPACE; - p->offset = p->rmargin; - p->rmargin = p->maxrmargin; - p->flags &= ~TERMP_NOBREAK; + /* At the bottom in the middle: manual date. */ - term_word(p, buf); + p->tcol->offset = p->tcol->rmargin; + titlen = term_strlen(p, title); + p->tcol->rmargin = p->maxrmargin > titlen ? + p->maxrmargin - titlen : 0; + p->flags |= TERMP_NOSPACE; + + term_word(p, meta->date); term_flushln(p); - free(buf); -} + /* Bottom right corner: manual title and section. */ + p->flags &= ~TERMP_NOBREAK; + p->flags |= TERMP_NOSPACE; + p->trailspace = 0; + p->tcol->offset = p->tcol->rmargin; + p->tcol->rmargin = p->maxrmargin; + term_word(p, title); + term_flushln(p); + free(title); +} + static void -print_head(struct termp *p, const struct man_meta *meta) +print_man_head(struct termp *p, const struct roff_meta *meta) { - char *buf, *title; + const char *volume; + char *title; + size_t vollen, titlen; - p->rmargin = p->maxrmargin; - p->offset = 0; + assert(meta->title); + assert(meta->msec); - if (NULL == (buf = malloc(p->rmargin))) - err(1, "malloc"); - if (NULL == (title = malloc(p->rmargin))) - err(1, "malloc"); + volume = NULL == meta->vol ? "" : meta->vol; + vollen = term_strlen(p, volume); - /* - * The header is strange. It has three components, which are - * really two with the first duplicated. It goes like this: - * - * IDENTIFIER TITLE IDENTIFIER - * - * The IDENTIFIER is NAME(SECTION), which is the command-name - * (if given, or "unknown" if not) followed by the manual page - * section. These are given in `Dt'. The TITLE is a free-form - * string depending on the manual volume. If not specified, it - * switches on the manual section. - */ + /* Top left corner: manual title and section. */ - if (meta->vol) - (void)strlcpy(buf, meta->vol, p->rmargin); - else - *buf = 0; + mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec); + titlen = term_strlen(p, title); - (void)snprintf(title, p->rmargin, "%s(%d)", - meta->title, meta->msec); - - p->offset = 0; - p->rmargin = (p->maxrmargin - strlen(buf)) / 2; p->flags |= TERMP_NOBREAK | TERMP_NOSPACE; + p->trailspace = 1; + p->tcol->offset = 0; + p->tcol->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ? + (p->maxrmargin - vollen + term_len(p, 1)) / 2 : + vollen < p->maxrmargin ? p->maxrmargin - vollen : 0; term_word(p, title); term_flushln(p); - p->flags |= TERMP_NOLPAD | TERMP_NOSPACE; - p->offset = p->rmargin; - p->rmargin = p->maxrmargin - strlen(title); + /* At the top in the middle: manual volume. */ - term_word(p, buf); + p->flags |= TERMP_NOSPACE; + p->tcol->offset = p->tcol->rmargin; + p->tcol->rmargin = p->tcol->offset + vollen + titlen < + p->maxrmargin ? p->maxrmargin - titlen : p->maxrmargin; + + term_word(p, volume); term_flushln(p); - p->offset = p->rmargin; - p->rmargin = p->maxrmargin; + /* Top right corner: title and section, again. */ + p->flags &= ~TERMP_NOBREAK; - p->flags |= TERMP_NOLPAD | TERMP_NOSPACE; + p->trailspace = 0; + if (p->tcol->rmargin + titlen <= p->maxrmargin) { + p->flags |= TERMP_NOSPACE; + p->tcol->offset = p->tcol->rmargin; + p->tcol->rmargin = p->maxrmargin; + term_word(p, title); + term_flushln(p); + } - term_word(p, title); - term_flushln(p); - - p->rmargin = p->maxrmargin; - p->offset = 0; p->flags &= ~TERMP_NOSPACE; + p->tcol->offset = 0; + p->tcol->rmargin = p->maxrmargin; + /* + * Groff prints three blank lines before the content. + * Do the same, except in the temporary, undocumented + * mode imitating mdoc(7) output. + */ + + term_vspace(p); + if ( ! p->mdocstyle) { + term_vspace(p); + term_vspace(p); + } free(title); - free(buf); } -