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fix ordering, match symbols properly

master
nisstyre56 10 years ago
parent
9f940ba32b
commit
db5446112f
2 changed files with 22 additions and 24 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 41
      tokenize.c
  2. 5
      tokenize.py

41
tokenize.c
View File

@ -226,7 +226,7 @@ match_identifier(source_t source, uint32_t begin, const uint32_t length) {
static inline uint32_t
match_symbol(source_t source, uint32_t begin, const uint32_t length) {
uint32_t i, identifier_match;
uint32_t i;
assert(source != NULL);
assert(length > 0);
@ -235,13 +235,13 @@ match_symbol(source_t source, uint32_t begin, const uint32_t length) {
return false;
}
i++;
identifier_match = match_identifier(source, i, length);
if (identifier_match) {
return identifier_match;
while (!isspace(source[i]) && i <= length) {
i++;
}
assert(identifier_match <= length);
return false;
if (i == begin) {
return false;
}
return i;
}
static inline void
@ -293,12 +293,7 @@ tokenize(source_t source, uint32_t begin, const uint32_t length) {
position = begin + 1;
push_token(&token_stack, right_paren);
}
else if (source[begin] == '\'') {
/* Matched a quote (apostrophe) */
position = begin + 1;
push_token(&token_stack, quote_tok);
}
else if (isspace(source[begin])) {
else if (isspace(source[begin])) {
position = begin + 1;
push_token(&token_stack, whitespace_tok);
/* Matched a whitespace character */
@ -326,8 +321,8 @@ tokenize(source_t source, uint32_t begin, const uint32_t length) {
/* Matched an int */
lookahead = source[position];
source[position] = '\0';
if ((current_token_val = hsh_retrieve(token_stack.memo, source+begin))) {
current_token.integer = (char *)current_token_val;
if ((current_token_val = (char *)hsh_retrieve(token_stack.memo, source+begin))) {
current_token.integer = current_token_val;
source[position] = lookahead;
}
else {
@ -341,15 +336,14 @@ tokenize(source_t source, uint32_t begin, const uint32_t length) {
hsh_insert(token_stack.memo, current_token_val, current_token_val);
current_token.integer = current_token_val;
}
push_token(&token_stack, make_token(current_token, INTEGER));
}
else if ((position = match_symbol(source, begin, length))) {
/* Matched a symbol */
lookahead = source[position];
source[position] = '\0';
if ((current_token_val = hsh_retrieve(token_stack.memo, source+begin))) {
current_token.symbol = (char *)current_token_val;
if ((current_token_val = (char *)hsh_retrieve(token_stack.memo, source+begin))) {
current_token.symbol = current_token_val;
source[position] = lookahead;
}
else {
@ -365,16 +359,20 @@ tokenize(source_t source, uint32_t begin, const uint32_t length) {
}
push_token(&token_stack, make_token(current_token, SYMBOL));
}
else if (source[begin] == '\'') {
/* Matched a quote (apostrophe) */
position = begin + 1;
push_token(&token_stack, quote_tok);
}
else if ((position = match_identifier(source, begin, length))) {
/* Matched an identifier */
lookahead = source[position];
source[position] = '\0';
if ((current_token_val = hsh_retrieve(token_stack.memo, source+begin))) {
current_token.identifier = (char *)current_token_val;
if ((current_token_val = (char *)hsh_retrieve(token_stack.memo, source+begin))) {
current_token.identifier = current_token_val;
source[position] = lookahead;
}
else {
assert(position > begin);
assert(position <= length);
@ -385,7 +383,6 @@ tokenize(source_t source, uint32_t begin, const uint32_t length) {
hsh_insert(token_stack.memo, current_token_val, current_token_val);
current_token.identifier = current_token_val;
}
push_token(&token_stack, make_token(current_token, IDENTIFIER));
/* Matched an identifier */
}

5
tokenize.py
View File

@ -47,5 +47,6 @@ def tokenize(source):
tokenizer.pop_token(tp)
tokenizer.release_tokens(tp)
line = "(+ a b) 'blah whatever (++ +.043 -4a +.0 +.3.2"
xs = list(tokenize(line*141500))
line = " '34 34"
xs = list(tokenize(line))
print xs