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Added support for scripts to determine word lists;

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Added 'trim' and 'remove_tags' script functions;
Simplified safety improvements of locale checker;
Added 'is_targeted' function to magic game to replace the contains(..) calls

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@635 0fc631ac-6414-0410-93d0-97cfa31319b6
This commit is contained in:
twanvl
2007-08-28 18:33:38 +00:00
parent ccaea98a67
commit fcc89b64d6
16 changed files with 479 additions and 225 deletions
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src/script/parser.cpp
+26 -15
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@@ -327,22 +327,22 @@ enum Precedence
};
/// Parse an expression
/** @param input Read tokens from the input
* @param scrip Add resulting instructions to the script
* @param minPrec Minimum precedence level for operators
/** @param input Read tokens from the input
* @param scrip Add resulting instructions to the script
* @param min_prec Minimum precedence level for operators
* NOTE: The net stack effect of an expression should be +1
*/
void parseExpr(TokenIterator& input, Script& script, Precedence minPrec);
void parseExpr(TokenIterator& input, Script& script, Precedence min_prec);
/// Parse an expression, possibly with operators applied. Optionally adds an instruction at the end.
/** @param input Read tokens from the input
* @param script Add resulting instructions to the script
* @param minPrec Minimum precedence level for operators
* @param closeWith Add this instruction at the end
* @param closeWithData Data for the instruction at the end
/** @param input Read tokens from the input
* @param script Add resulting instructions to the script
* @param min_prec Minimum precedence level for operators
* @param close_with Add this instruction at the end
* @param close_with_data Data for the instruction at the end
* NOTE: The net stack effect of an expression should be +1
*/
void parseOper(TokenIterator& input, Script& script, Precedence minPrec, InstructionType closeWith = I_NOP, int closeWithData = 0);
void parseOper(TokenIterator& input, Script& script, Precedence min_prec, InstructionType close_with = I_NOP, int close_with_data = 0);
ScriptP parse(const String& s, bool string_mode, vector<ScriptParseError>& errors_out) {
@@ -542,7 +542,9 @@ void parseExpr(TokenIterator& input, Script& script, Precedence minPrec) {
}
void parseOper(TokenIterator& input, Script& script, Precedence minPrec, InstructionType closeWith, int closeWithData) {
size_t added = script.getInstructions().size(); // number of instructions added
parseExpr(input, script, minPrec); // first argument
added -= script.getInstructions().size();
// read any operators after an expression
// EBNF: expr = expr | expr oper expr
// without left recursion: expr = expr (oper expr)*
@@ -565,10 +567,8 @@ void parseOper(TokenIterator& input, Script& script, Precedence minPrec, Instruc
} else if (minPrec <= PREC_SET && token==_(":=")) {
// We made a mistake, the part before the := should be a variable name,
// not an expression. Remove that instruction.
// TODO: There is a bug here:
// (if x then a else b) := c will use the 'b' as variable name
Instruction instr = script.getInstructions().back();
if (instr.instr != I_GET_VAR) {
Instruction& instr = script.getInstructions().back();
if (added == 1 && instr.instr != I_GET_VAR) {
input.add_error(_("Can only assign to variables"));
}
script.getInstructions().pop_back();
@@ -610,7 +610,18 @@ void parseOper(TokenIterator& input, Script& script, Precedence minPrec, Instruc
input.expected(_("name"));
}
} else if (minPrec <= PREC_FUN && token==_("[")) { // get member by expr
parseOper(input, script, PREC_ALL, I_BINARY, I_MEMBER);
size_t before = script.getInstructions().size();
parseOper(input, script, PREC_ALL);
if (script.getInstructions().size() == before + 1 && script.getInstructions().back().instr == I_PUSH_CONST) {
// optimize:
// PUSH_CONST x
// MEMBER
// becomes
// MEMBER_CONST x
script.getInstructions().back().instr = I_MEMBER_C;
} else {
script.addInstruction(I_BINARY, I_MEMBER);
}
expectToken(input, _("]"));
} else if (minPrec <= PREC_FUN && token==_("(")) {
// function call, read arguments