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properly handle escape sequences in string literals

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This commit is contained in:
mhoffm
2021-06-12 22:36:10 +02:00
parent 67680e4cda
commit 52247dee63
6 changed files with 2369 additions and 2020 deletions
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77
src/grammar.json
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@@ -255,22 +255,26 @@
"value": "\""
},
{
"type": "IMMEDIATE_TOKEN",
"type": "REPEAT",
"content": {
"type": "REPEAT",
"content": {
"type": "CHOICE",
"members": [
{
"type": "PATTERN",
"value": "[^\\\\\"\\n]"
},
{
"type": "PATTERN",
"value": "\\\\(.|\\n)"
"type": "CHOICE",
"members": [
{
"type": "IMMEDIATE_TOKEN",
"content": {
"type": "PREC",
"value": 1,
"content": {
"type": "PATTERN",
"value": "[^\\\\\"\\n\\r\\t]+"
}
}
]
}
},
{
"type": "SYMBOL",
"name": "escape_sequence"
}
]
}
},
{
@@ -279,6 +283,51 @@
}
]
},
"escape_sequence": {
"type": "IMMEDIATE_TOKEN",
"content": {
"type": "SEQ",
"members": [
{
"type": "STRING",
"value": "\\"
},
{
"type": "CHOICE",
"members": [
{
"type": "STRING",
"value": "\\"
},
{
"type": "STRING",
"value": "\""
},
{
"type": "STRING",
"value": "n"
},
{
"type": "STRING",
"value": "r"
},
{
"type": "STRING",
"value": "t"
},
{
"type": "PATTERN",
"value": "u[0-9a-fA-F]{4}"
},
{
"type": "PATTERN",
"value": "U[0-9a-fA-F]{8}"
}
]
}
]
}
},
"bool_lit": {
"type": "CHOICE",
"members": [