mirror of
https://github.com/cookiengineer/audacity
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243 lines
3.3 KiB
Plaintext
243 lines
3.3 KiB
Plaintext
<!-- ##### SECTION Title ##### -->
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Expressions
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<!-- ##### SECTION Short_Description ##### -->
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Query language expressions.
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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Expressions form an expression tree that can be evaluated using
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rasqal_expression_evaluate() over #rasqal_op operators, #rasqal_literal
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constants and #rasqal_variable values bound in some
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#rasqal_query_result. The result is a #rasqal_literal value.
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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</para>
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<!-- ##### SECTION Stability_Level ##### -->
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<!-- ##### TYPEDEF rasqal_expression ##### -->
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<para>
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</para>
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<!-- ##### ENUM rasqal_op ##### -->
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<para>
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</para>
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@RASQAL_EXPR_UNKNOWN:
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@RASQAL_EXPR_AND:
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@RASQAL_EXPR_OR:
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@RASQAL_EXPR_EQ:
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@RASQAL_EXPR_NEQ:
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@RASQAL_EXPR_LT:
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@RASQAL_EXPR_GT:
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@RASQAL_EXPR_LE:
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@RASQAL_EXPR_GE:
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@RASQAL_EXPR_UMINUS:
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@RASQAL_EXPR_PLUS:
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@RASQAL_EXPR_MINUS:
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@RASQAL_EXPR_STAR:
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@RASQAL_EXPR_SLASH:
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@RASQAL_EXPR_REM:
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@RASQAL_EXPR_STR_EQ:
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@RASQAL_EXPR_STR_NEQ:
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@RASQAL_EXPR_STR_MATCH:
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@RASQAL_EXPR_STR_NMATCH:
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@RASQAL_EXPR_TILDE:
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@RASQAL_EXPR_BANG:
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@RASQAL_EXPR_LITERAL:
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@RASQAL_EXPR_FUNCTION:
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@RASQAL_EXPR_BOUND:
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@RASQAL_EXPR_STR:
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@RASQAL_EXPR_LANG:
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@RASQAL_EXPR_DATATYPE:
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@RASQAL_EXPR_ISURI:
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@RASQAL_EXPR_ISBLANK:
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@RASQAL_EXPR_ISLITERAL:
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@RASQAL_EXPR_CAST:
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@RASQAL_EXPR_ORDER_COND_ASC:
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@RASQAL_EXPR_ORDER_COND_DESC:
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@RASQAL_EXPR_LANGMATCHES:
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@RASQAL_EXPR_REGEX:
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@RASQAL_EXPR_GROUP_COND_ASC:
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@RASQAL_EXPR_GROUP_COND_DESC:
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@RASQAL_EXPR_COUNT:
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@RASQAL_EXPR_VARSTAR:
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@RASQAL_EXPR_SAMETERM:
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@RASQAL_EXPR_LAST:
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<!-- ##### ENUM rasqal_compare_flags ##### -->
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<para>
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</para>
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@RASQAL_COMPARE_NOCASE:
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@RASQAL_COMPARE_XQUERY:
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@RASQAL_COMPARE_RDF:
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@RASQAL_COMPARE_URI:
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<!-- ##### ENUM rasqal_pattern_flags ##### -->
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<para>
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</para>
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@RASQAL_PATTERN_FLAGS_OPTIONAL:
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@RASQAL_PATTERN_FLAGS_LAST:
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<!-- ##### FUNCTION rasqal_new_0op_expression ##### -->
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<para>
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</para>
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@op:
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@Returns:
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<!-- ##### FUNCTION rasqal_new_1op_expression ##### -->
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<para>
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</para>
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@op:
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@arg:
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@Returns:
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<!-- ##### FUNCTION rasqal_new_2op_expression ##### -->
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<para>
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</para>
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@op:
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@arg1:
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@arg2:
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@Returns:
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<!-- ##### FUNCTION rasqal_new_3op_expression ##### -->
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<para>
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</para>
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@op:
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@arg1:
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@arg2:
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@arg3:
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@Returns:
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<!-- ##### FUNCTION rasqal_new_cast_expression ##### -->
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<para>
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</para>
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@name:
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@value:
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@Returns:
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<!-- ##### FUNCTION rasqal_new_function_expression ##### -->
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<para>
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</para>
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@name:
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@args:
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@Returns:
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<!-- ##### FUNCTION rasqal_new_literal_expression ##### -->
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<para>
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</para>
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@literal:
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@Returns:
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<!-- ##### FUNCTION rasqal_new_string_op_expression ##### -->
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<para>
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</para>
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@op:
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@arg1:
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@literal:
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@Returns:
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<!-- ##### FUNCTION rasqal_new_expression_from_expression ##### -->
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<para>
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</para>
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@e:
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@Returns:
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<!-- ##### FUNCTION rasqal_free_expression ##### -->
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<para>
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</para>
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@e:
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<!-- ##### FUNCTION rasqal_expression_evaluate ##### -->
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<para>
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</para>
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@query:
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@e:
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@flags:
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@Returns:
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<!-- ##### FUNCTION rasqal_expression_print ##### -->
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<para>
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</para>
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@e:
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@fh:
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<!-- ##### FUNCTION rasqal_expression_print_op ##### -->
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<para>
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</para>
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@e:
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@fh:
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<!-- ##### USER_FUNCTION rasqal_expression_visit_fn ##### -->
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<para>
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</para>
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@user_data:
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@e:
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@Returns:
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<!-- ##### FUNCTION rasqal_expression_visit ##### -->
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<para>
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</para>
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@e:
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@fn:
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@user_data:
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@Returns:
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