version 1.21, 2009/08/19 09:14:50 |
version 1.43, 2010/05/15 20:51:40 |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
#include <stdlib.h> |
#include <stdlib.h> |
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#include "libman.h" |
#include "libman.h" |
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#define REW_REWIND (0) /* See rew_scope(). */ |
enum rew { |
#define REW_NOHALT (1) /* See rew_scope(). */ |
REW_REWIND, |
#define REW_HALT (2) /* See rew_scope(). */ |
REW_NOHALT, |
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REW_HALT |
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}; |
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static int in_line_eoln(MACRO_PROT_ARGS); |
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static int blk_imp(MACRO_PROT_ARGS); |
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static int blk_close(MACRO_PROT_ARGS); |
static int blk_close(MACRO_PROT_ARGS); |
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static int blk_dotted(MACRO_PROT_ARGS); |
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static int blk_exp(MACRO_PROT_ARGS); |
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static int blk_imp(MACRO_PROT_ARGS); |
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static int in_line_eoln(MACRO_PROT_ARGS); |
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static int rew_scope(enum man_type, struct man *, int); |
static int rew_scope(enum man_type, |
static int rew_dohalt(int, enum man_type, |
struct man *, enum mant); |
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static enum rew rew_dohalt(enum mant, enum man_type, |
const struct man_node *); |
const struct man_node *); |
static int rew_block(int, enum man_type, |
static enum rew rew_block(enum mant, enum man_type, |
const struct man_node *); |
const struct man_node *); |
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static int rew_warn(struct man *, |
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struct man_node *, enum merr); |
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const struct man_macro __man_macros[MAN_MAX] = { |
const struct man_macro __man_macros[MAN_MAX] = { |
{ in_line_eoln, 0 }, /* br */ |
{ in_line_eoln, MAN_NSCOPED }, /* br */ |
{ in_line_eoln, 0 }, /* TH */ |
{ in_line_eoln, 0 }, /* TH */ |
{ blk_imp, 0 }, /* SH */ |
{ blk_imp, MAN_SCOPED }, /* SH */ |
{ blk_imp, 0 }, /* SS */ |
{ blk_imp, MAN_SCOPED }, /* SS */ |
{ blk_imp, MAN_SCOPED }, /* TP */ |
{ blk_imp, MAN_SCOPED | MAN_FSCOPED }, /* TP */ |
{ blk_imp, 0 }, /* LP */ |
{ blk_imp, 0 }, /* LP */ |
{ blk_imp, 0 }, /* PP */ |
{ blk_imp, 0 }, /* PP */ |
{ blk_imp, 0 }, /* P */ |
{ blk_imp, 0 }, /* P */ |
Line 57 const struct man_macro __man_macros[MAN_MAX] = { |
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Line 68 const struct man_macro __man_macros[MAN_MAX] = { |
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{ in_line_eoln, MAN_SCOPED }, /* I */ |
{ in_line_eoln, MAN_SCOPED }, /* I */ |
{ in_line_eoln, 0 }, /* IR */ |
{ in_line_eoln, 0 }, /* IR */ |
{ in_line_eoln, 0 }, /* RI */ |
{ in_line_eoln, 0 }, /* RI */ |
{ in_line_eoln, 0 }, /* na */ |
{ in_line_eoln, MAN_NSCOPED }, /* na */ |
{ in_line_eoln, 0 }, /* i */ |
{ in_line_eoln, 0 }, /* i */ |
{ in_line_eoln, 0 }, /* sp */ |
{ in_line_eoln, MAN_NSCOPED }, /* sp */ |
{ in_line_eoln, 0 }, /* nf */ |
{ in_line_eoln, 0 }, /* nf */ |
{ in_line_eoln, 0 }, /* fi */ |
{ in_line_eoln, 0 }, /* fi */ |
{ in_line_eoln, 0 }, /* r */ |
{ in_line_eoln, 0 }, /* r */ |
{ blk_close, 0 }, /* RE */ |
{ blk_close, 0 }, /* RE */ |
{ blk_imp, 0 }, /* RS */ |
{ blk_exp, MAN_EXPLICIT }, /* RS */ |
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{ in_line_eoln, 0 }, /* DT */ |
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{ in_line_eoln, 0 }, /* UC */ |
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{ in_line_eoln, 0 }, /* PD */ |
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{ in_line_eoln, MAN_NSCOPED }, /* Sp */ |
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{ in_line_eoln, 0 }, /* Vb */ |
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{ in_line_eoln, 0 }, /* Ve */ |
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{ blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* de */ |
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{ blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* dei */ |
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{ blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* am */ |
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{ blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* ami */ |
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{ blk_dotted, 0 }, /* . */ |
}; |
}; |
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const struct man_macro * const man_macros = __man_macros; |
const struct man_macro * const man_macros = __man_macros; |
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/* |
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* Warn when "n" is an explicit non-roff macro. |
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*/ |
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static int |
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rew_warn(struct man *m, struct man_node *n, enum merr er) |
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{ |
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if (er == WERRMAX || MAN_BLOCK != n->type) |
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return(1); |
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if (MAN_VALID & n->flags) |
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return(1); |
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if ( ! (MAN_EXPLICIT & man_macros[n->tok].flags)) |
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return(1); |
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if (MAN_NOCLOSE & man_macros[n->tok].flags) |
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return(1); |
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return(man_nwarn(m, n, er)); |
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} |
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/* |
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* Rewind scope. If a code "er" != WERRMAX has been provided, it will |
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* be used if an explicit block scope is being closed out. |
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*/ |
int |
int |
man_unscope(struct man *m, const struct man_node *n) |
man_unscope(struct man *m, const struct man_node *n, enum merr er) |
{ |
{ |
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assert(n); |
assert(n); |
m->next = MAN_NEXT_SIBLING; |
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/* LINTED */ |
/* LINTED */ |
while (m->last != n) { |
while (m->last != n) { |
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if ( ! rew_warn(m, m->last, er)) |
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return(0); |
if ( ! man_valid_post(m)) |
if ( ! man_valid_post(m)) |
return(0); |
return(0); |
if ( ! man_action_post(m)) |
if ( ! man_action_post(m)) |
Line 87 man_unscope(struct man *m, const struct man_node *n) |
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Line 133 man_unscope(struct man *m, const struct man_node *n) |
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assert(m->last); |
assert(m->last); |
} |
} |
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if ( ! rew_warn(m, m->last, er)) |
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return(0); |
if ( ! man_valid_post(m)) |
if ( ! man_valid_post(m)) |
return(0); |
return(0); |
return(man_action_post(m)); |
if ( ! man_action_post(m)) |
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return(0); |
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m->next = MAN_ROOT == m->last->type ? |
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MAN_NEXT_CHILD : MAN_NEXT_SIBLING; |
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return(1); |
} |
} |
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static int |
static enum rew |
rew_block(int ntok, enum man_type type, const struct man_node *n) |
rew_block(enum mant ntok, enum man_type type, const struct man_node *n) |
{ |
{ |
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if (MAN_BLOCK == type && ntok == n->parent->tok && |
if (MAN_BLOCK == type && ntok == n->parent->tok && |
Line 109 rew_block(int ntok, enum man_type type, const struct m |
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Line 163 rew_block(int ntok, enum man_type type, const struct m |
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* section (all less sections), and scoped to subsections (all less |
* section (all less sections), and scoped to subsections (all less |
* sections and subsections). |
* sections and subsections). |
*/ |
*/ |
static int |
static enum rew |
rew_dohalt(int tok, enum man_type type, const struct man_node *n) |
rew_dohalt(enum mant tok, enum man_type type, const struct man_node *n) |
{ |
{ |
int c; |
enum rew c; |
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/* We cannot progress beyond the root ever. */ |
if (MAN_ROOT == n->type) |
if (MAN_ROOT == n->type) |
return(REW_HALT); |
return(REW_HALT); |
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assert(n->parent); |
assert(n->parent); |
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/* Normal nodes shouldn't go to the level of the root. */ |
if (MAN_ROOT == n->parent->type) |
if (MAN_ROOT == n->parent->type) |
return(REW_REWIND); |
return(REW_REWIND); |
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/* Already-validated nodes should be closed out. */ |
if (MAN_VALID & n->flags) |
if (MAN_VALID & n->flags) |
return(REW_NOHALT); |
return(REW_NOHALT); |
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/* Rewind to ourselves, first. */ |
/* First: rewind to ourselves. */ |
if (type == n->type && tok == n->tok) |
if (type == n->type && tok == n->tok) |
return(REW_REWIND); |
return(REW_REWIND); |
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/* |
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* If we're a roff macro, then we can close out anything that |
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* stands between us and our parent context. |
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*/ |
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if (MAN_NOCLOSE & man_macros[tok].flags) |
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return(REW_NOHALT); |
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/* |
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* Don't clobber roff macros: this is a bit complicated. If the |
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* current macro is a roff macro, halt immediately and don't |
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* rewind. If it's not, and the parent is, then close out the |
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* current scope and halt at the parent. |
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*/ |
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if (MAN_NOCLOSE & man_macros[n->tok].flags) |
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return(REW_HALT); |
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if (MAN_NOCLOSE & man_macros[n->parent->tok].flags) |
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return(REW_REWIND); |
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/* |
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* Next follow the implicit scope-smashings as defined by man.7: |
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* section, sub-section, etc. |
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*/ |
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switch (tok) { |
switch (tok) { |
case (MAN_SH): |
case (MAN_SH): |
break; |
break; |
Line 165 rew_dohalt(int tok, enum man_type type, const struct m |
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Line 248 rew_dohalt(int tok, enum man_type type, const struct m |
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* scopes. When a scope is closed, it must be validated and actioned. |
* scopes. When a scope is closed, it must be validated and actioned. |
*/ |
*/ |
static int |
static int |
rew_scope(enum man_type type, struct man *m, int tok) |
rew_scope(enum man_type type, struct man *m, enum mant tok) |
{ |
{ |
struct man_node *n; |
struct man_node *n; |
int c; |
enum rew c; |
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/* LINTED */ |
/* LINTED */ |
for (n = m->last; n; n = n->parent) { |
for (n = m->last; n; n = n->parent) { |
Line 184 rew_scope(enum man_type type, struct man *m, int tok) |
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Line 267 rew_scope(enum man_type type, struct man *m, int tok) |
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break; |
break; |
} |
} |
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/* Rewind until the current point. */ |
/* |
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* Rewind until the current point. Warn if we're a roff |
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* instruction that's mowing over explicit scopes. |
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*/ |
assert(n); |
assert(n); |
return(man_unscope(m, n)); |
if (MAN_NOCLOSE & man_macros[tok].flags) |
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return(man_unscope(m, n, WROFFSCOPE)); |
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return(man_unscope(m, n, WERRMAX)); |
} |
} |
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/* |
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* Closure for dotted macros (de, dei, am, ami, ign). This must handle |
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* any of these as the parent node, so it needs special handling. |
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* Beyond this, it's the same as blk_close(). |
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*/ |
/* ARGSUSED */ |
/* ARGSUSED */ |
int |
int |
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blk_dotted(MACRO_PROT_ARGS) |
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{ |
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enum mant ntok; |
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struct man_node *nn; |
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/* Check for any of the following parents... */ |
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for (nn = m->last->parent; nn; nn = nn->parent) |
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if (nn->tok == MAN_de || nn->tok == MAN_dei || |
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nn->tok == MAN_am || |
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nn->tok == MAN_ami) { |
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ntok = nn->tok; |
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break; |
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} |
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if (NULL == nn) { |
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if ( ! man_pwarn(m, line, ppos, WNOSCOPE)) |
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return(0); |
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return(1); |
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} |
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if ( ! rew_scope(MAN_BODY, m, ntok)) |
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return(0); |
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if ( ! rew_scope(MAN_BLOCK, m, ntok)) |
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return(0); |
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/* |
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* Restore flags set when we got here and also stipulate that we |
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* don't post-process the line when exiting the macro op |
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* function in man_pmacro(). See blk_exp(). |
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*/ |
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m->flags = m->svflags | MAN_ILINE; |
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m->next = m->svnext; |
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return(1); |
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} |
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/* |
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* Close out a generic explicit macro. |
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*/ |
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/* ARGSUSED */ |
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int |
blk_close(MACRO_PROT_ARGS) |
blk_close(MACRO_PROT_ARGS) |
{ |
{ |
int ntok; |
enum mant ntok; |
const struct man_node *nn; |
const struct man_node *nn; |
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switch (tok) { |
switch (tok) { |
Line 219 blk_close(MACRO_PROT_ARGS) |
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Line 355 blk_close(MACRO_PROT_ARGS) |
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return(0); |
return(0); |
if ( ! rew_scope(MAN_BLOCK, m, ntok)) |
if ( ! rew_scope(MAN_BLOCK, m, ntok)) |
return(0); |
return(0); |
m->next = MAN_NEXT_SIBLING; |
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return(1); |
return(1); |
} |
} |
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int |
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blk_exp(MACRO_PROT_ARGS) |
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{ |
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int w, la; |
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char *p; |
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/* |
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* Close out prior scopes. "Regular" explicit macros cannot be |
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* nested, but we allow roff macros to be placed just about |
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* anywhere. |
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*/ |
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if ( ! (MAN_NOCLOSE & man_macros[tok].flags)) { |
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if ( ! rew_scope(MAN_BODY, m, tok)) |
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return(0); |
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if ( ! rew_scope(MAN_BLOCK, m, tok)) |
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return(0); |
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} else { |
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/* |
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* Save our state and next-scope indicator; we restore |
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* it when exiting from the roff instruction block. See |
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* blk_dotted(). |
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*/ |
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m->svflags = m->flags; |
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m->svnext = m->next; |
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/* Make sure we drop any line modes. */ |
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m->flags = 0; |
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} |
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if ( ! man_block_alloc(m, line, ppos, tok)) |
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return(0); |
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if ( ! man_head_alloc(m, line, ppos, tok)) |
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return(0); |
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for (;;) { |
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la = *pos; |
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w = man_args(m, line, pos, buf, &p); |
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if (-1 == w) |
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return(0); |
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if (0 == w) |
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break; |
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if ( ! man_word_alloc(m, line, la, p)) |
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return(0); |
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} |
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assert(m); |
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assert(tok != MAN_MAX); |
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if ( ! rew_scope(MAN_HEAD, m, tok)) |
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return(0); |
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return(man_body_alloc(m, line, ppos, tok)); |
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} |
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/* |
/* |
* Parse an implicit-block macro. These contain a MAN_HEAD and a |
* Parse an implicit-block macro. These contain a MAN_HEAD and a |
* MAN_BODY contained within a MAN_BLOCK. Rules for closing out other |
* MAN_BODY contained within a MAN_BLOCK. Rules for closing out other |
Line 235 blk_imp(MACRO_PROT_ARGS) |
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Line 429 blk_imp(MACRO_PROT_ARGS) |
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{ |
{ |
int w, la; |
int w, la; |
char *p; |
char *p; |
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struct man_node *n; |
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/* Close out prior scopes. */ |
/* Close out prior scopes. */ |
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Line 250 blk_imp(MACRO_PROT_ARGS) |
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Line 445 blk_imp(MACRO_PROT_ARGS) |
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if ( ! man_head_alloc(m, line, ppos, tok)) |
if ( ! man_head_alloc(m, line, ppos, tok)) |
return(0); |
return(0); |
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n = m->last; |
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/* Add line arguments. */ |
/* Add line arguments. */ |
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for (;;) { |
for (;;) { |
Line 268 blk_imp(MACRO_PROT_ARGS) |
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Line 465 blk_imp(MACRO_PROT_ARGS) |
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/* Close out head and open body (unless MAN_SCOPE). */ |
/* Close out head and open body (unless MAN_SCOPE). */ |
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if (MAN_SCOPED & man_macros[tok].flags) { |
if (MAN_SCOPED & man_macros[tok].flags) { |
m->flags |= MAN_BLINE; |
/* If we're forcing scope (`TP'), keep it open. */ |
return(1); |
if (MAN_FSCOPED & man_macros[tok].flags) { |
} else if ( ! rew_scope(MAN_HEAD, m, tok)) |
m->flags |= MAN_BLINE; |
return(0); |
return(1); |
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} else if (n == m->last) { |
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m->flags |= MAN_BLINE; |
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return(1); |
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} |
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} |
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if ( ! rew_scope(MAN_HEAD, m, tok)) |
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return(0); |
return(man_body_alloc(m, line, ppos, tok)); |
return(man_body_alloc(m, line, ppos, tok)); |
} |
} |
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Line 297 in_line_eoln(MACRO_PROT_ARGS) |
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Line 501 in_line_eoln(MACRO_PROT_ARGS) |
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return(0); |
return(0); |
if (0 == w) |
if (0 == w) |
break; |
break; |
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if ( ! man_word_alloc(m, line, la, p)) |
if ( ! man_word_alloc(m, line, la, p)) |
return(0); |
return(0); |
} |
} |
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if (n == m->last && (MAN_SCOPED & man_macros[tok].flags)) { |
/* |
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* If no arguments are specified and this is MAN_SCOPED (i.e., |
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* next-line scoped), then set our mode to indicate that we're |
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* waiting for terms to load into our context. |
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*/ |
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if (n == m->last && MAN_SCOPED & man_macros[tok].flags) { |
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assert( ! (MAN_NSCOPED & man_macros[tok].flags)); |
m->flags |= MAN_ELINE; |
m->flags |= MAN_ELINE; |
return(1); |
return(1); |
} |
} |
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/* Set ignorable context, if applicable. */ |
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if (MAN_NSCOPED & man_macros[tok].flags) { |
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assert( ! (MAN_SCOPED & man_macros[tok].flags)); |
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m->flags |= MAN_ILINE; |
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} |
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/* |
/* |
* Note that when TH is pruned, we'll be back at the root, so |
* Rewind our element scope. Note that when TH is pruned, we'll |
* make sure that we don't clobber as its sibling. |
* be back at the root, so make sure that we don't clobber as |
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* its sibling. |
*/ |
*/ |
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/* FIXME: clean this to use man_unscope(). */ |
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for ( ; m->last; m->last = m->last->parent) { |
for ( ; m->last; m->last = m->last->parent) { |
if (m->last == n) |
if (m->last == n) |
break; |
break; |
Line 335 in_line_eoln(MACRO_PROT_ARGS) |
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Line 551 in_line_eoln(MACRO_PROT_ARGS) |
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return(0); |
return(0); |
if (m->last->type != MAN_ROOT && ! man_action_post(m)) |
if (m->last->type != MAN_ROOT && ! man_action_post(m)) |
return(0); |
return(0); |
if (m->last->type != MAN_ROOT) |
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m->next = MAN_NEXT_SIBLING; |
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m->next = MAN_ROOT == m->last->type ? |
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MAN_NEXT_CHILD : MAN_NEXT_SIBLING; |
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return(1); |
return(1); |
} |
} |
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man_macroend(struct man *m) |
man_macroend(struct man *m) |
{ |
{ |
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return(man_unscope(m, m->first)); |
return(man_unscope(m, m->first, WEXITSCOPE)); |
} |
} |
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