int
_gmx_sel_lexer_process_pending(YYSTYPE *yylval, YYLTYPE *yylloc,
gmx_sel_lexer_t *state)
{
if (state->nextparam)
{
gmx_ana_selparam_t *param = state->nextparam;
bool bBoolNo = state->bBoolNo;
if (state->neom > 0)
{
--state->neom;
_gmx_sel_lexer_add_token(yylloc, nullptr, 0, state);
return END_OF_METHOD;
}
state->nextparam = nullptr;
state->bBoolNo = false;
_gmx_sel_lexer_add_token(yylloc, param->name, -1, state);
return init_param_token(yylval, param, bBoolNo);
}
if (state->prev_pos_kw > 0)
{
--state->prev_pos_kw;
}
if (state->nextMethodSymbol)
{
const gmx::SelectionParserSymbol *symbol = state->nextMethodSymbol;
state->nextMethodSymbol = nullptr;
return init_method_token(yylval, yylloc, symbol, true, state);
}
return 0;
}
int
_gmx_sel_lexer_process_pending(YYSTYPE *yylval, gmx_sel_lexer_t *state)
{
if (state->nextparam)
{
gmx_ana_selparam_t *param = state->nextparam;
bool bBoolNo = state->bBoolNo;
if (state->neom > 0)
{
--state->neom;
return END_OF_METHOD;
}
state->nextparam = NULL;
state->bBoolNo = false;
_gmx_sel_lexer_add_token(param->name, -1, state);
return init_param_token(yylval, param, bBoolNo);
}
if (state->prev_pos_kw > 0)
{
--state->prev_pos_kw;
}
if (state->nextmethod)
{
gmx_ana_selmethod_t *method = state->nextmethod;
state->nextmethod = NULL;
return init_method_token(yylval, method, true, state);
}
return 0;
}
int
_gmx_sel_lexer_process_identifier(YYSTYPE *yylval, YYLTYPE *yylloc,
char *yytext, size_t yyleng,
gmx_sel_lexer_t *state)
{
/* Check if the identifier matches with a parameter name */
if (state->msp >= 0)
{
gmx_ana_selparam_t *param = nullptr;
bool bBoolNo = false;
int sp = state->msp;
while (!param && sp >= 0)
{
int i;
for (i = 0; i < state->mstack[sp]->nparams; ++i)
{
/* Skip NULL parameters and too long parameters */
if (state->mstack[sp]->param[i].name == nullptr
|| strlen(state->mstack[sp]->param[i].name) > yyleng)
{
continue;
}
if (!strncmp(state->mstack[sp]->param[i].name, yytext, yyleng))
{
param = &state->mstack[sp]->param[i];
break;
}
/* Check separately for a 'no' prefix on boolean parameters */
if (state->mstack[sp]->param[i].val.type == NO_VALUE
&& yyleng > 2 && yytext[0] == 'n' && yytext[1] == 'o'
&& !strncmp(state->mstack[sp]->param[i].name, yytext+2, yyleng-2))
{
param = &state->mstack[sp]->param[i];
bBoolNo = true;
break;
}
}
if (!param)
{
--sp;
}
}
if (param)
{
if (param->val.type == NO_VALUE && !bBoolNo)
{
state->bMatchBool = true;
}
if (sp < state->msp)
{
state->neom = state->msp - sp - 1;
state->nextparam = param;
state->bBoolNo = bBoolNo;
return END_OF_METHOD;
}
_gmx_sel_lexer_add_token(yylloc, param->name, -1, state);
return init_param_token(yylval, param, bBoolNo);
}
}
/* Check if the identifier matches with a symbol */
const gmx::SelectionParserSymbol *symbol
= state->sc->symtab->findSymbol(std::string(yytext, yyleng));
/* If there is no match, return the token as a string */
if (!symbol)
{
yylval->str = gmx_strndup(yytext, yyleng);
_gmx_sel_lexer_add_token(yylloc, yytext, yyleng, state);
return IDENTIFIER;
}
gmx::SelectionParserSymbol::SymbolType symtype = symbol->type();
/* For method symbols, we need some extra processing. */
if (symtype == gmx::SelectionParserSymbol::MethodSymbol)
{
return init_method_token(yylval, yylloc, symbol, state->prev_pos_kw > 0, state);
}
_gmx_sel_lexer_add_token(yylloc, symbol->name().c_str(), -1, state);
/* Reserved symbols should have been caught earlier */
if (symtype == gmx::SelectionParserSymbol::ReservedSymbol)
{
GMX_THROW(gmx::InternalError(gmx::formatString(
"Mismatch between tokenizer and reserved symbol table (for '%s')",
symbol->name().c_str())));
}
/* For variable symbols, return the type of the variable value */
if (symtype == gmx::SelectionParserSymbol::VariableSymbol)
{
const gmx::SelectionTreeElementPointer &var = symbol->variableValue();
/* Return simple tokens for constant variables */
if (var->type == SEL_CONST)
{
switch (var->v.type)
{
case INT_VALUE:
yylval->i = var->v.u.i[0];
return TOK_INT;
case REAL_VALUE:
yylval->r = var->v.u.r[0];
return TOK_REAL;
case POS_VALUE:
break;
default:
GMX_THROW(gmx::InternalError("Unsupported variable type"));
}
}
yylval->sel = new gmx::SelectionTreeElementPointer(var);
switch (var->v.type)
{
case INT_VALUE: return VARIABLE_NUMERIC;
case REAL_VALUE: return VARIABLE_NUMERIC;
case POS_VALUE: return VARIABLE_POS;
case GROUP_VALUE: return VARIABLE_GROUP;
default:
delete yylval->sel;
GMX_THROW(gmx::InternalError("Unsupported variable type"));
}
/* This position should not be reached. */
}
/* For position symbols, we need to return KEYWORD_POS, but we also need
* some additional handling. */
if (symtype == gmx::SelectionParserSymbol::PositionSymbol)
{
state->bMatchOf = true;
yylval->str = gmx_strdup(symbol->name().c_str());
state->prev_pos_kw = 2;
return KEYWORD_POS;
}
/* Should not be reached */
return INVALID;
}
