DeforaOS/C99
DeforaOS/C99
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More parsing rules

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This commit is contained in:
Pierre Pronchery 2008-03-07 00:48:42 +00:00
parent 62eca79a12
commit 2a412d727e
2 changed files with 195 additions and 3 deletions
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2
include/c99.h
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@ -142,6 +142,8 @@ typedef enum _C99Code
C99_CODE_KEYWORD__IMAGINARY,
C99_CODE_IDENTIFIER
} C99Code;
# define C99_CODE_META_FIRST CPP_CODE_META_FIRST
# define C99_CODE_META_LAST CPP_CODE_META_LAST
typedef struct _C99Prefs
{

196
src/parser.c
View File

@ -58,6 +58,15 @@ static int _assignment_expr(C99 * c99);
static int _unary_expr(C99 * c99);
static int _assignment_operator(C99 * c99);
static int _conditional_expr(C99 * c99);
static int _logical_or_expr(C99 * c99);
static int _logical_and_expr(C99 * c99);
static int _inclusive_or_expr(C99 * c99);
static int _exclusive_or_expr(C99 * c99);
static int _and_expr(C99 * c99);
static int _equality_expr(C99 * c99);
static int _relational_expr(C99 * c99);
static int _shift_expr(C99 * c99);
static int _additive_expr(C99 * c99);
static int _declaration_list(C99 * c99);
static int _declaration(C99 * c99);
static int _compound_statement(C99 * c99);
@ -571,8 +580,189 @@ static int _assignment_operator(C99 * c99)
/* conditional-expr */
static int _conditional_expr(C99 * c99)
/* logical-OR-expr [ "?" expr ":" conditional-expr ] */
{
int ret;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
ret = _logical_or_expr(c99);
if(token_get_code(c99->token) == C99_CODE_OPERATOR_QUESTION)
{
ret |= c99_scan(c99);
ret |= _expression(c99);
ret |= _parse_check(c99, C99_CODE_OPERATOR_COLON);
ret |= _conditional_expr(c99);
}
return ret;
}
/* logical-OR-expr */
static int _logical_or_expr(C99 * c99)
/* logical-AND-expr { "||" logical-AND-expr } */
{
int ret;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
ret = _logical_and_expr(c99);
while(token_get_code(c99->token) == C99_CODE_OPERATOR_DBAR)
{
ret |= c99_scan(c99);
ret |= _logical_and_expr(c99);
}
return ret;
}
/* logical-AND-expr */
static int _logical_and_expr(C99 * c99)
/* inclusive-OR-expr { "&&" inclusive-OR-expr } */
{
int ret;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
ret = _inclusive_or_expr(c99);
while(token_get_code(c99->token) == C99_CODE_OPERATOR_DAMPERSAND)
{
ret |= c99_scan(c99);
ret |= _inclusive_or_expr(c99);
}
return ret;
}
/* inclusive-OR-expr */
static int _inclusive_or_expr(C99 * c99)
/* exclusive-OR-expr { "|" exclusive-OR-expr } */
{
int ret;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
ret = _exclusive_or_expr(c99);
while(token_get_code(c99->token) == C99_CODE_OPERATOR_BAR)
{
ret |= c99_scan(c99);
ret |= _exclusive_or_expr(c99);
}
return ret;
}
/* exclusive-OR-expr */
static int _exclusive_or_expr(C99 * c99)
/* AND-expr { "^" AND-expr } */
{
int ret;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
ret = _and_expr(c99);
while(token_get_code(c99->token) == C99_CODE_OPERATOR_XOR)
{
ret |= c99_scan(c99);
ret |= _and_expr(c99);
}
return ret;
}
/* AND-expr */
static int _and_expr(C99 * c99)
/* equality-expr { "&" equality-expr } */
{
int ret;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
ret = _equality_expr(c99);
while(token_get_code(c99->token) == C99_CODE_OPERATOR_AMPERSAND)
{
ret |= c99_scan(c99);
ret |= _equality_expr(c99);
}
return ret;
}
/* equality-expr */
static int _equality_expr(C99 * c99)
/* relational-expr { ("==" | "!=") relational-expr } */
{
int ret;
int code;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
ret = _relational_expr(c99);
while((code = token_get_code(c99->token)) == C99_CODE_OPERATOR_DEQUALS
|| code == C99_CODE_OPERATOR_NEQUALS)
{
ret |= c99_scan(c99);
ret |= _relational_expr(c99);
}
return ret;
}
/* relational-expr */
static int _relational_expr(C99 * c99)
/* shift-expr { ("<" | ">" | "<=" | ">=") shift-expr } */
{
int ret;
int code;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
ret = _shift_expr(c99);
while((code = token_get_code(c99->token)) == C99_CODE_OPERATOR_LESS
|| code == C99_CODE_OPERATOR_GREATER
|| code == C99_CODE_OPERATOR_LEQUALS
|| code == C99_CODE_OPERATOR_GEQUALS)
{
ret |= c99_scan(c99);
ret |= _shift_expr(c99);
}
return ret;
}
/* shift-expr */
static int _shift_expr(C99 * c99)
/* additive-expr { ("<<" | ">>") additive-expr } */
{
int ret;
int code;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
ret = _additive_expr(c99);
while((code = token_get_code(c99->token)) == C99_CODE_OPERATOR_DLESS
|| code == C99_CODE_OPERATOR_DGREATER)
{
ret |= c99_scan(c99);
ret |= _additive_expr(c99);
}
return ret;
}
/* additive-expr */
static int _additive_expr(C99 * c99)
{
/* FIXME implement */
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
@ -685,12 +875,12 @@ static int _labeled_statement(C99 * c99)
/* constant_expr */
static int _constant_expr(C99 * c99)
/* conditional-expr */
{
/* FIXME implement */
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
return 0;
return _conditional_expr(c99);
}