85 lines
4 KiB
C++
85 lines
4 KiB
C++
#ifndef PARSE_HPP
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#define PARSE_HPP
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#include "struc.hpp"
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#include <string>
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#include <utility>
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#include <vector>
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#include <ztd/filedat.hpp>
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#define SPACES " \t"
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#define SEPARATORS " \t\n"
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#define ARG_END " \t\n;#()&|<>"
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#define VARNAME_END " \t\n;#()&|=\"'\\{}/-+"
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#define BLOCK_TOKEN_END " \t\n;#()&|=\"'\\"
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#define COMMAND_SEPARATOR "\n;"
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#define CONTROL_END "#)"
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#define PIPELINE_END "\n;#()&"
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#define ARGLIST_END "\n;#()&|"
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#define SPECIAL_TOKENS "\n;#()&|"
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#define ALL_TOKENS "\n;#()&|{}"
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#define SPECIAL_VARS "!#*@$?"
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// bash specific
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#define ARRAY_ARG_END " \t\n;#()&|<>]"
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// macros
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#define PARSE_ERROR(str, i) ztd::format_error(str, "", in, i)
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// globals
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extern bool g_bash;
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extern const std::vector<std::string> posix_cmdvar;
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extern const std::vector<std::string> bash_cmdvar;
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std::string import_file(std::string const& path);
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shmain* parse_text(const char* in, uint32_t size, std::string const& filename="");
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inline shmain* parse_text(std::string const& in, std::string const& filename="") { return parse_text(in.c_str(), in.size(), filename); }
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inline shmain* parse(std::string const& file) { return parse_text(import_file(file), file); }
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// ** unit parsers ** //
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/* util parsers */
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bool word_eq(const char* word, const char* in, uint32_t size, uint32_t start, const char* end_set=NULL);
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std::pair<std::string,uint32_t> get_word(const char* in, uint32_t size, uint32_t start, const char* end_set);
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uint32_t skip_chars(const char* in, uint32_t size, uint32_t start, const char* set);
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uint32_t skip_until(const char* in, uint32_t size, uint32_t start, const char* set);
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uint32_t skip_unread(const char* in, uint32_t size, uint32_t start);
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// list
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std::pair<list*, uint32_t> parse_list_until(const char* in, uint32_t size, uint32_t start, char end_c, const char* expecting=NULL);
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std::pair<list*, uint32_t> parse_list_until(const char* in, uint32_t size, uint32_t start, std::string const& end_word);
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std::tuple<list*, uint32_t, std::string> parse_list_until(const char* in, uint32_t size, uint32_t start, std::vector<std::string> const& end_words, const char* expecting=NULL);
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// name
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std::pair<variable*, uint32_t> parse_var(const char* in, uint32_t size, uint32_t start, bool specialvars=true, bool array=false);
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// subarg parsers
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std::pair<arithmetic*, uint32_t> parse_arithmetic(const char* in, uint32_t size, uint32_t start);
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std::pair<variable*, uint32_t> parse_manipulation(const char* in, uint32_t size, uint32_t start);
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// arg parser
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std::pair<arg*, uint32_t> parse_arg(const char* in, uint32_t size, uint32_t start, const char* end=ARG_END, const char* unexpected=SPECIAL_TOKENS, bool doquote=true);
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// redirect parser
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std::pair<redirect*, uint32_t> parse_redirect(const char* in, uint32_t size, uint32_t start);
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// arglist parser
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std::pair<arglist*, uint32_t> parse_arglist(const char* in, uint32_t size, uint32_t start, bool hard_error=false, std::vector<redirect*>* redirs=nullptr);
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// block parsers
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std::pair<block*, uint32_t> parse_block(const char* in, uint32_t size, uint32_t start);
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std::pair<cmd*, uint32_t> parse_cmd(const char* in, uint32_t size, uint32_t start);
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std::pair<function*, uint32_t> parse_function(const char* in, uint32_t size, uint32_t start, const char* after="()");
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std::pair<subshell*, uint32_t> parse_subshell(const char* in, uint32_t size, uint32_t start);
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std::pair<brace*, uint32_t> parse_brace(const char* in, uint32_t size, uint32_t start);
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std::pair<case_block*, uint32_t> parse_case(const char* in, uint32_t size, uint32_t start);
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std::pair<if_block*, uint32_t> parse_if(const char* in, uint32_t size, uint32_t start);
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std::pair<for_block*, uint32_t> parse_for(const char* in, uint32_t size, uint32_t start);
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std::pair<while_block*, uint32_t> parse_while(const char* in, uint32_t size, uint32_t start);
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// pipeline parser
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std::pair<pipeline*, uint32_t> parse_pipeline(const char* in, uint32_t size, uint32_t start);
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// condlist parser
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std::pair<condlist*, uint32_t> parse_condlist(const char* in, uint32_t size, uint32_t start);
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#endif //PARSE_HPP
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