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made slight enhancement in @include handling

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This commit is contained in:
hyung-hwan 2012-10-26 00:55:13 +00:00
parent 8ac0963885
commit 66da8f46c7
3 changed files with 55 additions and 56 deletions
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103
qse/lib/awk/parse.c
View File

@ -158,7 +158,7 @@ struct binmap_t
int binop;
};
static qse_awk_t* parse_progunit (qse_awk_t* awk);
static int parse_progunit (qse_awk_t* awk);
static qse_awk_t* collect_globals (qse_awk_t* awk);
static void adjust_static_globals (qse_awk_t* awk);
static qse_size_t find_global (
@ -531,20 +531,18 @@ static int parse (qse_awk_t* awk)
* when op is positive, which means there are something to parse */
if (op > 0)
{
/* get the first character */
if (get_char(awk) <= -1) goto oops;
/* get the first token */
if (get_token(awk) <= -1) goto oops;
/* get the first character and the first token */
if (get_char (awk) <= -1 || get_token (awk)) goto oops;
while (1)
{
while (MATCH(awk,TOK_NEWLINE))
{
if (get_token(awk) <= -1) goto oops;
if (get_token (awk) <= -1) goto oops;
}
if (MATCH(awk,TOK_EOF)) break;
if (parse_progunit(awk) == QSE_NULL) goto oops;
if (parse_progunit (awk) <= -1) goto oops;
}
if ((awk->opt.trait & QSE_AWK_EXPLICIT) &&
@ -788,7 +786,7 @@ static int begin_include (qse_awk_t* awk)
/* read in the first character in the included file.
* so the next call to get_token() sees the character read
* from this file. */
if (get_char (awk) <= -1)
if (get_char (awk) <= -1 || get_token (awk) <= -1)
{
end_include (awk);
/* since i've called end_include(), i don't go to oops */
@ -802,7 +800,7 @@ oops:
return -1;
}
static qse_awk_t* parse_progunit (qse_awk_t* awk)
static int parse_progunit (qse_awk_t* awk)
{
/*
@include "xxxx"
@ -815,14 +813,13 @@ static qse_awk_t* parse_progunit (qse_awk_t* awk)
QSE_ASSERT (awk->parse.depth.loop == 0);
retry:
if ((awk->opt.trait & QSE_AWK_EXPLICIT) && MATCH(awk,TOK_GLOBAL))
{
qse_size_t ngbls;
awk->parse.id.block = PARSE_GBL;
if (get_token(awk) <= -1) return QSE_NULL;
if (get_token(awk) <= -1) return -1;
QSE_ASSERT (awk->tree.ngbls == QSE_LDA_SIZE(awk->parse.gbls));
ngbls = awk->tree.ngbls;
@ -832,118 +829,112 @@ retry:
awk->parse.gbls, ngbls,
QSE_LDA_SIZE(awk->parse.gbls) - ngbls);
awk->tree.ngbls = ngbls;
return QSE_NULL;
return -1;
}
}
else if (MATCH(awk,TOK_ATSIGN))
{
if (get_token(awk) <= -1) return QSE_NULL;
if (get_token(awk) <= -1) return -1;
if (MATCH(awk,TOK_INCLUDE))
if (MATCH(awk,TOK_INCLUDE)) /* TOOD: INCLUDE must not be a separate keyword... */
{
if (awk->opt.depth.s.incl > 0 &&
awk->parse.depth.incl >= awk->opt.depth.s.incl)
{
SETERR_LOC (awk, QSE_AWK_EINCLTD, &awk->ptok.loc);
return QSE_NULL;
return -1;
}
if (get_token(awk) <= -1) return QSE_NULL;
if (get_token(awk) <= -1) return -1;
if (!MATCH(awk,TOK_STR))
{
SETERR_LOC (
awk, QSE_AWK_EINCLSTR, &awk->ptok.loc);
return QSE_NULL;
return -1;
}
if (begin_include (awk) <= -1) return QSE_NULL;
if (begin_include (awk) <= -1) return -1;
/* i'm retrying to get the first top-level
* element as if parse_progunit() is called.
* so i need to skip NEWLINE tokens */
do
{
if (get_token(awk) <= -1) return QSE_NULL;
}
while (MATCH(awk,TOK_NEWLINE));
goto retry;
/* i just return without doing anything special
* after having setting up the environment for file
* inclusion. the loop in parse() proceeds to call
* parse_progunit() */
}
else
{
SETERR_TOK (awk, QSE_AWK_EDIRECNR);
return QSE_NULL;
return -1;
}
}
else if (MATCH(awk,TOK_FUNCTION))
{
awk->parse.id.block = PARSE_FUNCTION;
if (parse_function (awk) == QSE_NULL) return QSE_NULL;
if (parse_function (awk) == QSE_NULL) return -1;
}
else if (MATCH(awk,TOK_BEGIN))
{
if ((awk->opt.trait & QSE_AWK_PABLOCK) == 0)
{
SETERR_TOK (awk, QSE_AWK_EKWFNC);
return QSE_NULL;
return -1;
}
awk->parse.id.block = PARSE_BEGIN;
if (get_token(awk) <= -1) return QSE_NULL;
if (get_token(awk) <= -1) return -1;
if (MATCH(awk,TOK_NEWLINE) || MATCH(awk,TOK_EOF))
{
/* when QSE_AWK_NEWLINE is set,
* BEGIN and { should be located on the same line */
SETERR_LOC (awk, QSE_AWK_EBLKBEG, &awk->ptok.loc);
return QSE_NULL;
return -1;
}
if (!MATCH(awk,TOK_LBRACE))
{
SETERR_TOK (awk, QSE_AWK_ELBRACE);
return QSE_NULL;
return -1;
}
awk->parse.id.block = PARSE_BEGIN_BLOCK;
if (parse_begin (awk) == QSE_NULL) return QSE_NULL;
if (parse_begin (awk) == QSE_NULL) return -1;
/* skip a semicolon after an action block if any */
if (MATCH(awk,TOK_SEMICOLON) &&
get_token (awk) <= -1) return QSE_NULL;
get_token (awk) <= -1) return -1;
}
else if (MATCH(awk,TOK_END))
{
if ((awk->opt.trait & QSE_AWK_PABLOCK) == 0)
{
SETERR_TOK (awk, QSE_AWK_EKWFNC);
return QSE_NULL;
return -1;
}
awk->parse.id.block = PARSE_END;
if (get_token(awk) <= -1) return QSE_NULL;
if (get_token(awk) <= -1) return -1;
if (MATCH(awk,TOK_NEWLINE) || MATCH(awk,TOK_EOF))
{
/* when QSE_AWK_NEWLINE is set,
* END and { should be located on the same line */
SETERR_LOC (awk, QSE_AWK_EBLKEND, &awk->ptok.loc);
return QSE_NULL;
return -1;
}
if (!MATCH(awk,TOK_LBRACE))
{
SETERR_TOK (awk, QSE_AWK_ELBRACE);
return QSE_NULL;
return -1;
}
awk->parse.id.block = PARSE_END_BLOCK;
if (parse_end (awk) == QSE_NULL) return QSE_NULL;
if (parse_end (awk) == QSE_NULL) return -1;
/* skip a semicolon after an action block if any */
if (MATCH(awk,TOK_SEMICOLON) &&
get_token (awk) <= -1) return QSE_NULL;
get_token (awk) <= -1) return -1;
}
else if (MATCH(awk,TOK_LBRACE))
{
@ -951,15 +942,15 @@ retry:
if ((awk->opt.trait & QSE_AWK_PABLOCK) == 0)
{
SETERR_TOK (awk, QSE_AWK_EKWFNC);
return QSE_NULL;
return -1;
}
awk->parse.id.block = PARSE_ACTION_BLOCK;
if (parse_action_block (awk, QSE_NULL, 0) == QSE_NULL) return QSE_NULL;
if (parse_action_block (awk, QSE_NULL, 0) == QSE_NULL) return -1;
/* skip a semicolon after an action block if any */
if (MATCH(awk,TOK_SEMICOLON) &&
get_token (awk) <= -1) return QSE_NULL;
get_token (awk) <= -1) return -1;
}
else
{
@ -978,14 +969,14 @@ retry:
if ((awk->opt.trait & QSE_AWK_PABLOCK) == 0)
{
SETERR_TOK (awk, QSE_AWK_EKWFNC);
return QSE_NULL;
return -1;
}
awk->parse.id.block = PARSE_PATTERN;
eloc = awk->tok.loc;
ptn = parse_expr_dc (awk, &eloc);
if (ptn == QSE_NULL) return QSE_NULL;
if (ptn == QSE_NULL) return -1;
QSE_ASSERT (ptn->next == QSE_NULL);
@ -994,7 +985,7 @@ retry:
if (get_token (awk) <= -1)
{
qse_awk_clrpt (awk, ptn);
return QSE_NULL;
return -1;
}
eloc = awk->tok.loc;
@ -1003,7 +994,7 @@ retry:
if (ptn->next == QSE_NULL)
{
qse_awk_clrpt (awk, ptn);
return QSE_NULL;
return -1;
}
}
@ -1017,7 +1008,7 @@ retry:
if (parse_action_block (awk, ptn, 1) == QSE_NULL)
{
qse_awk_clrpt (awk, ptn);
return QSE_NULL;
return -1;
}
if (!eof)
@ -1028,7 +1019,7 @@ retry:
* it doesn't have to be cleared here
* as qse_awk_clear does it */
/*qse_awk_clrpt (awk, ptn);*/
return QSE_NULL;
return -1;
}
}
@ -1038,7 +1029,7 @@ retry:
* to be ON because the implicit block is
* "print $0" */
SETERR_LOC (awk, QSE_AWK_ENOSUP, &ploc);
return QSE_NULL;
return -1;
}
}
else
@ -1048,23 +1039,23 @@ retry:
{
qse_awk_clrpt (awk, ptn);
SETERR_TOK (awk, QSE_AWK_ELBRACE);
return QSE_NULL;
return -1;
}
awk->parse.id.block = PARSE_ACTION_BLOCK;
if (parse_action_block (awk, ptn, 0) == QSE_NULL)
{
qse_awk_clrpt (awk, ptn);
return QSE_NULL;
return -1;
}
/* skip a semicolon after an action block if any */
if (MATCH(awk,TOK_SEMICOLON) &&
get_token (awk) <= -1) return QSE_NULL;
get_token (awk) <= -1) return -1;
}
}
return awk;
return 0;
}
static qse_awk_nde_t* parse_function (qse_awk_t* awk)

4
qse/regress/awk/Makefile.am
View File

@ -107,6 +107,10 @@ EXTRA_DIST = \
lang-043.awk \
lang-044.awk \
lang-045.awk \
lang-046.awk \
lang-047.awk \
lang-048.awk \
lang-049.awk \
columnate.awk \
levenshtein.awk \
levenshtein-utests.awk \

4
qse/regress/awk/Makefile.in
View File

@ -333,6 +333,10 @@ EXTRA_DIST = \
lang-043.awk \
lang-044.awk \
lang-045.awk \
lang-046.awk \
lang-047.awk \
lang-048.awk \
lang-049.awk \
columnate.awk \
levenshtein.awk \
levenshtein-utests.awk \