diff options
Diffstat (limited to 'mdoc_state.c')
| -rw-r--r-- | mdoc_state.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/mdoc_state.c b/mdoc_state.c new file mode 100644 index 00000000..903ad436 --- /dev/null +++ b/mdoc_state.c @@ -0,0 +1,269 @@ +/* $Id$ */ +/* + * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze@openbsd.org> + * + * 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. + * + * 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. + */ +#include <sys/types.h> + +#include <stdlib.h> +#include <string.h> + +#include "mandoc.h" +#include "roff.h" +#include "mdoc.h" +#include "libmandoc.h" +#include "libmdoc.h" + +#define STATE_ARGS struct roff_man *mdoc, struct roff_node *n + +typedef void (*state_handler)(STATE_ARGS); + +static void state_bd(STATE_ARGS); +static void state_dl(STATE_ARGS); +static void state_sh(STATE_ARGS); +static void state_sm(STATE_ARGS); + +static const state_handler state_handlers[MDOC_MAX] = { + NULL, /* Ap */ + NULL, /* Dd */ + NULL, /* Dt */ + NULL, /* Os */ + state_sh, /* Sh */ + NULL, /* Ss */ + NULL, /* Pp */ + NULL, /* D1 */ + state_dl, /* Dl */ + state_bd, /* Bd */ + NULL, /* Ed */ + NULL, /* Bl */ + NULL, /* El */ + NULL, /* It */ + NULL, /* Ad */ + NULL, /* An */ + NULL, /* Ar */ + NULL, /* Cd */ + NULL, /* Cm */ + NULL, /* Dv */ + NULL, /* Er */ + NULL, /* Ev */ + NULL, /* Ex */ + NULL, /* Fa */ + NULL, /* Fd */ + NULL, /* Fl */ + NULL, /* Fn */ + NULL, /* Ft */ + NULL, /* Ic */ + NULL, /* In */ + NULL, /* Li */ + NULL, /* Nd */ + NULL, /* Nm */ + NULL, /* Op */ + NULL, /* Ot */ + NULL, /* Pa */ + NULL, /* Rv */ + NULL, /* St */ + NULL, /* Va */ + NULL, /* Vt */ + NULL, /* Xr */ + NULL, /* %A */ + NULL, /* %B */ + NULL, /* %D */ + NULL, /* %I */ + NULL, /* %J */ + NULL, /* %N */ + NULL, /* %O */ + NULL, /* %P */ + NULL, /* %R */ + NULL, /* %T */ + NULL, /* %V */ + NULL, /* Ac */ + NULL, /* Ao */ + NULL, /* Aq */ + NULL, /* At */ + NULL, /* Bc */ + NULL, /* Bf */ + NULL, /* Bo */ + NULL, /* Bq */ + NULL, /* Bsx */ + NULL, /* Bx */ + NULL, /* Db */ + NULL, /* Dc */ + NULL, /* Do */ + NULL, /* Dq */ + NULL, /* Ec */ + NULL, /* Ef */ + NULL, /* Em */ + NULL, /* Eo */ + NULL, /* Fx */ + NULL, /* Ms */ + NULL, /* No */ + NULL, /* Ns */ + NULL, /* Nx */ + NULL, /* Ox */ + NULL, /* Pc */ + NULL, /* Pf */ + NULL, /* Po */ + NULL, /* Pq */ + NULL, /* Qc */ + NULL, /* Ql */ + NULL, /* Qo */ + NULL, /* Qq */ + NULL, /* Re */ + NULL, /* Rs */ + NULL, /* Sc */ + NULL, /* So */ + NULL, /* Sq */ + state_sm, /* Sm */ + NULL, /* Sx */ + NULL, /* Sy */ + NULL, /* Tn */ + NULL, /* Ux */ + NULL, /* Xc */ + NULL, /* Xo */ + NULL, /* Fo */ + NULL, /* Fc */ + NULL, /* Oo */ + NULL, /* Oc */ + NULL, /* Bk */ + NULL, /* Ek */ + NULL, /* Bt */ + NULL, /* Hf */ + NULL, /* Fr */ + NULL, /* Ud */ + NULL, /* Lb */ + NULL, /* Lp */ + NULL, /* Lk */ + NULL, /* Mt */ + NULL, /* Brq */ + NULL, /* Bro */ + NULL, /* Brc */ + NULL, /* %C */ + NULL, /* Es */ + NULL, /* En */ + NULL, /* Dx */ + NULL, /* %Q */ + NULL, /* br */ + NULL, /* sp */ + NULL, /* %U */ + NULL, /* Ta */ + NULL, /* ll */ +}; + + +void +mdoc_state(struct roff_man *mdoc, struct roff_node *n) +{ + state_handler handler; + + if (n->tok == TOKEN_NONE) + return; + + if ( ! (mdoc_macros[n->tok].flags & MDOC_PROLOGUE)) + mdoc->flags |= MDOC_PBODY; + + handler = state_handlers[n->tok]; + if (*handler) + (*handler)(mdoc, n); +} + +void +mdoc_state_reset(struct roff_man *mdoc) +{ + + roff_setreg(mdoc->roff, "nS", 0, '='); + mdoc->flags = 0; +} + +static void +state_bd(STATE_ARGS) +{ + enum mdocargt arg; + + if (n->type != ROFFT_HEAD && + (n->type != ROFFT_BODY || n->end != ENDBODY_NOT)) + return; + + arg = n->parent->args->argv[0].arg; + if (arg != MDOC_Literal && arg != MDOC_Unfilled) + return; + + state_dl(mdoc, n); +} + +static void +state_dl(STATE_ARGS) +{ + + switch (n->type) { + case ROFFT_HEAD: + mdoc->flags |= MDOC_LITERAL; + break; + case ROFFT_BODY: + mdoc->flags &= ~MDOC_LITERAL; + break; + default: + break; + } +} + +static void +state_sh(STATE_ARGS) +{ + struct roff_node *nch; + char *secname; + + if (n->type != ROFFT_HEAD) + return; + + if ( ! (n->flags & MDOC_VALID)) { + secname = NULL; + deroff(&secname, n); + + /* + * Set the section attribute for the BLOCK, HEAD, + * and HEAD children; the latter can only be TEXT + * nodes, so no recursion is needed. For other + * nodes, including the .Sh BODY, this is done + * when allocating the node data structures, but + * for .Sh BLOCK and HEAD, the section is still + * unknown at that time. + */ + + n->sec = n->parent->sec = secname == NULL ? + SEC_CUSTOM : mdoc_a2sec(secname); + for (nch = n->child; nch != NULL; nch = nch->next) + nch->sec = n->sec; + free(secname); + } + + if ((mdoc->lastsec = n->sec) == SEC_SYNOPSIS) { + roff_setreg(mdoc->roff, "nS", 1, '='); + mdoc->flags |= MDOC_SYNOPSIS; + } else { + roff_setreg(mdoc->roff, "nS", 0, '='); + mdoc->flags &= ~MDOC_SYNOPSIS; + } +} + +static void +state_sm(STATE_ARGS) +{ + + if (n->child == NULL) + mdoc->flags ^= MDOC_SMOFF; + else if ( ! strcmp(n->child->string, "on")) + mdoc->flags &= ~MDOC_SMOFF; + else if ( ! strcmp(n->child->string, "off")) + mdoc->flags |= MDOC_SMOFF; +} |