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remove unnecessary lookaheads

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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Paolo Bonzini 2010-05-24 09:39:53 +02:00 committed by Luiz Capitulino
parent f7c052747e
commit 28e91a681a
1 changed files with 16 additions and 32 deletions
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48
json-lexer.c
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@ -29,7 +29,6 @@
enum json_lexer_state {
ERROR = 0,
IN_DONE_STRING,
IN_DQ_UCODE3,
IN_DQ_UCODE2,
IN_DQ_UCODE1,
@ -57,9 +56,7 @@ enum json_lexer_state {
IN_ESCAPE_I,
IN_ESCAPE_I6,
IN_ESCAPE_I64,
IN_ESCAPE_DONE,
IN_WHITESPACE,
IN_OPERATOR_DONE,
IN_START,
};
@ -72,10 +69,6 @@ enum json_lexer_state {
(json_lexer[(old_state)][0] == (terminal))
static const uint8_t json_lexer[][256] = {
[IN_DONE_STRING] = {
TERMINAL(JSON_STRING),
},
/* double quote string */
[IN_DQ_UCODE3] = {
['0' ... '9'] = IN_DQ_STRING,
@ -112,7 +105,7 @@ static const uint8_t json_lexer[][256] = {
[IN_DQ_STRING] = {
[1 ... 0xFF] = IN_DQ_STRING,
['\\'] = IN_DQ_STRING_ESCAPE,
['"'] = IN_DONE_STRING,
['"'] = JSON_STRING,
},
/* single quote string */
@ -151,7 +144,7 @@ static const uint8_t json_lexer[][256] = {
[IN_SQ_STRING] = {
[1 ... 0xFF] = IN_SQ_STRING,
['\\'] = IN_SQ_STRING_ESCAPE,
['\''] = IN_DONE_STRING,
['\''] = JSON_STRING,
},
/* Zero */
@ -217,27 +210,18 @@ static const uint8_t json_lexer[][256] = {
['\n'] = IN_WHITESPACE,
},
/* operator */
[IN_OPERATOR_DONE] = {
TERMINAL(JSON_OPERATOR),
},
/* escape */
[IN_ESCAPE_DONE] = {
TERMINAL(JSON_ESCAPE),
},
[IN_ESCAPE_LL] = {
['d'] = IN_ESCAPE_DONE,
['d'] = JSON_ESCAPE,
},
[IN_ESCAPE_L] = {
['d'] = IN_ESCAPE_DONE,
['d'] = JSON_ESCAPE,
['l'] = IN_ESCAPE_LL,
},
[IN_ESCAPE_I64] = {
['d'] = IN_ESCAPE_DONE,
['d'] = JSON_ESCAPE,
},
[IN_ESCAPE_I6] = {
@ -249,11 +233,11 @@ static const uint8_t json_lexer[][256] = {
},
[IN_ESCAPE] = {
['d'] = IN_ESCAPE_DONE,
['i'] = IN_ESCAPE_DONE,
['p'] = IN_ESCAPE_DONE,
['s'] = IN_ESCAPE_DONE,
['f'] = IN_ESCAPE_DONE,
['d'] = JSON_ESCAPE,
['i'] = JSON_ESCAPE,
['p'] = JSON_ESCAPE,
['s'] = JSON_ESCAPE,
['f'] = JSON_ESCAPE,
['l'] = IN_ESCAPE_L,
['I'] = IN_ESCAPE_I,
},
@ -265,12 +249,12 @@ static const uint8_t json_lexer[][256] = {
['0'] = IN_ZERO,
['1' ... '9'] = IN_NONZERO_NUMBER,
['-'] = IN_NEG_NONZERO_NUMBER,
['{'] = IN_OPERATOR_DONE,
['}'] = IN_OPERATOR_DONE,
['['] = IN_OPERATOR_DONE,
[']'] = IN_OPERATOR_DONE,
[','] = IN_OPERATOR_DONE,
[':'] = IN_OPERATOR_DONE,
['{'] = JSON_OPERATOR,
['}'] = JSON_OPERATOR,
['['] = JSON_OPERATOR,
[']'] = JSON_OPERATOR,
[','] = JSON_OPERATOR,
[':'] = JSON_OPERATOR,
['a' ... 'z'] = IN_KEYWORD,
['%'] = IN_ESCAPE,
[' '] = IN_WHITESPACE,