84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
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#pragma once
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#include <vector>
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#include "expression_processor.h"
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#include "lib_begin.h"
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namespace cgv {
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namespace media {
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namespace text {
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namespace ppp {
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enum CommandType {
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CT_IMPLICIT_TEXT = -1,
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CT_TEXT = 0,
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CT_DEFINE,
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CT_SKIP,
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CT_READ,
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CT_WRITE,
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CT_RAND,
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CT_NAMESPACE,
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CT_FOR,
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CT_IF, CT_ELIF, CT_ELSE,
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CT_EVAL, CT_STRING, CT_LIST,
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CT_BEGIN, CT_END,
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CT_INCLUDE, CT_CINCLUDE, CT_EXCLUDE, CT_INSERT,
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CT_REFLECT_NEXT_LINE, CT_REFLECT_PREV_LINE,
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CT_COUT, CT_CIN, CT_ERROR, CT_WARNING,
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CT_SYSTEM, CT_DIR, CT_FUNC, CT_EXIT,
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CT_TRANSFORM,
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CT_SCAN_INCLUDES,
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CT_UNDEF
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};
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struct CGV_API command_token : public token
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{
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protected:
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static std::string last_error;
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static token last_error_token;
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public:
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static const std::string& get_last_error();
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static const token& get_last_error_token();
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/// store command type
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CommandType ct;
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/// store index of parenthesis that enclosed the expressions
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unsigned int parenthesis_index;
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/// store the index of the command token that terminates the block following this command
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unsigned int block_end;
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/// vector of parsed expressions
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std::vector<expression_processor> expressions;
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/// constructs an undefined command token
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command_token();
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/// constructs a command token of type text
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command_token(const token& t);
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/// splits a command token from the front of a given token
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bool split_off_from(token& t);
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/// get the number of characters to be skipped before expressions start
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unsigned get_skip_length() const;
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/// return the number of expressions that the command takes as argument
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unsigned get_nr_expressions() const;
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/// return the minimum number of expressions that the command takes as argument
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unsigned get_min_nr_expressions() const;
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/// return whether the number of expressions that the command takes as argument is fix
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bool is_nr_expressions_fix() const;
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/// return the keyword describing the command
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const char* get_keyword() const;
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/// check whether the token only contains white spaces
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bool is_empty() const;
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/// return whether the command token must be followed by a block
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bool block_follows() const;
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/// return whether empty text tokens before this command token should be deleted
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bool remove_preceeding_empty_text_token() const;
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/// return the open parenthesis enclosing the expressions
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char get_open_parenthesis() const;
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/// return the close parenthesis enclosing the expressions
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char get_close_parenthesis() const;
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};
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}
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}
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}
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}
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#include <cgv/config/lib_end.h>
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