lua/llex.c File Reference

#include <locale.h>
#include <string.h>
#include "lua.h"
#include "lctype.h"
#include "ldo.h"
#include "llex.h"
#include "lobject.h"
#include "lparser.h"
#include "lstate.h"
#include "lstring.h"
#include "ltable.h"
#include "lzio.h"

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Defines
#define	llex_c
#define	LUA_CORE
#define	next(ls)   (ls->current = zgetc(ls->z))
#define	currIsNewline(ls)   (ls->current == '\n' || ls->current == '\r')
#define	save_and_next(ls)   (save(ls, ls->current), next(ls))
#define	getlocaledecpoint()   (localeconv()->decimal_point[0])
#define	buff2d(b, e)   luaO_str2d(luaZ_buffer(b), luaZ_bufflen(b) - 1, e)
Functions
static l_noret	lexerror (LexState *ls, const char *msg, int token)
static void	save (LexState *ls, int c)
void	luaX_init (lua_State *L)
const char *	luaX_token2str (LexState *ls, int token)
static const char *	txtToken (LexState *ls, int token)
l_noret	luaX_syntaxerror (LexState *ls, const char *msg)
TString *	luaX_newstring (LexState *ls, const char *str, size_t l)
static void	inclinenumber (LexState *ls)
void	luaX_setinput (lua_State *L, LexState *ls, ZIO *z, TString *source, int firstchar)
static int	check_next (LexState *ls, const char *set)
static void	buffreplace (LexState *ls, char from, char to)
static void	trydecpoint (LexState *ls, SemInfo *seminfo)
static void	read_numeral (LexState *ls, SemInfo *seminfo)
static int	skip_sep (LexState *ls)
static void	read_long_string (LexState *ls, SemInfo *seminfo, int sep)
static void	escerror (LexState *ls, int *c, int n, const char *msg)
static int	readhexaesc (LexState *ls)
static int	readdecesc (LexState *ls)
static void	read_string (LexState *ls, int del, SemInfo *seminfo)
static int	llex (LexState *ls, SemInfo *seminfo)
void	luaX_next (LexState *ls)
int	luaX_lookahead (LexState *ls)
Variables
static const char *const	luaX_tokens []

---

Define Documentation

#define buff2d	(		b,
			e
	)			luaO_str2d(luaZ_buffer(b), luaZ_bufflen(b) - 1, e)

Definition at line 206 of file llex.c.

Referenced by read_numeral(), and trydecpoint().

#define currIsNewline

(

ls

)

(ls->current == '\n' || ls->current == '\r')

Definition at line 32 of file llex.c.

Referenced by inclinenumber(), llex(), read_long_string(), and read_string().

#define getlocaledecpoint

(

)

(localeconv()->decimal_point[0])

Definition at line 202 of file llex.c.

Referenced by trydecpoint().

#define llex_c

Definition at line 11 of file llex.c.

#define LUA_CORE

Definition at line 12 of file llex.c.

#define next

(

ls

)

(ls->current = zgetc(ls->z))

Definition at line 28 of file llex.c.

Referenced by pathfind::a_star_search(), server::clones_handler(), convergeephemerons(), default_generate_map(), events::console_handler::do_choose_level(), find_routes(), ai::testing_ai_default::get_villages_phase::find_villages(), PluginInstance::JSDirectoryReader::HandleResponse(), inclinenumber(), utils::join(), llex(), luaE_freeCI(), luaK_patchclose(), luaS_resize(), markbeingfnz(), gui2::iterator::policy::order::ttop_down< visit_widget, visit_grid, visit_child >::next(), gui2::iterator::policy::order::tbottom_up< visit_widget, visit_grid, visit_child >::next(), patchlistaux(), read_long_string(), read_string(), readdecesc(), readhexaesc(), and gui2::iterator::policy::order::ttop_down< visit_widget, visit_grid, visit_child >::up().

#define save_and_next

(

ls

)

(save(ls, ls->current), next(ls))

Definition at line 46 of file llex.c.

Referenced by check_next(), llex(), read_long_string(), read_numeral(), read_string(), and skip_sep().

---

Function Documentation

static void buffreplace	(	LexState *	ls,
		char	from,
		char	to
	)			[static]

Definition at line 193 of file llex.c.

References LexState::buff, luaZ_buffer, and luaZ_bufflen.

Referenced by read_numeral(), and trydecpoint().

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static int check_next	(	LexState *	ls,
		const char *	set
	)			[static]

Definition at line 182 of file llex.c.

References LexState::current, and save_and_next.

Referenced by llex(), and read_numeral().

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static void escerror	(	LexState *	ls,
		int *	c,
		int	n,
		const char *	msg
	)			[static]

Definition at line 291 of file llex.c.

References LexState::buff, lexerror(), luaZ_resetbuffer, save(), and TK_STRING.

Referenced by read_string(), readdecesc(), and readhexaesc().

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static void inclinenumber

(

LexState *

ls

)

[static]

Definition at line 145 of file llex.c.

References LexState::current, currIsNewline, LexState::linenumber, lua_assert, luaX_syntaxerror(), MAX_INT, and next.

Referenced by llex(), read_long_string(), and read_string().

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static l_noret lexerror	(	LexState *	ls,
		const char *	msg,
		int	token
	)			[static]

Definition at line 104 of file llex.c.

References getstr, LexState::L, LexState::linenumber, LUA_ERRSYNTAX, LUA_IDSIZE, luaD_throw(), luaO_chunkid(), luaO_pushfstring(), LexState::source, and txtToken().

Referenced by escerror(), llex(), luaX_syntaxerror(), read_long_string(), read_string(), save(), and trydecpoint().

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static int llex	(	LexState *	ls,
		SemInfo *	seminfo
	)			[static]

Definition at line 387 of file llex.c.

References LexState::buff, check_next(), LexState::current, currIsNewline, EOZ, inclinenumber(), lexerror(), lisdigit, lislalnum, lislalpha, luaX_newstring(), luaZ_buffer, luaZ_bufflen, luaZ_resetbuffer, next, read_long_string(), read_numeral(), read_string(), TString::reserved, save_and_next, skip_sep(), TK_STRING, SemInfo::ts, and TString::tsv.

Referenced by luaX_lookahead(), and luaX_next().

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void luaX_init

(

lua_State *

L

)

Definition at line 65 of file llex.c.

References cast_byte, luaS_fix, luaS_new(), luaX_tokens, TString::reserved, and TString::tsv.

Referenced by f_luaopen().

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int luaX_lookahead

(

LexState *

ls

)

Definition at line 511 of file llex.c.

References llex(), LexState::lookahead, lua_assert, Token::seminfo, TK_EOS, and Token::token.

Referenced by field().

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TString* luaX_newstring	(	LexState *	ls,
		const char *	str,
		size_t	l
	)

Definition at line 124 of file llex.c.

References LexState::fs, FuncState::h, LexState::L, luaC_checkGC, luaH_set(), luaS_newlstr(), setbvalue, setsvalue2s, lua_State::top, and ttisnil.

Referenced by anchor_token(), llex(), new_localvarliteral_(), read_long_string(), and read_string().

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void luaX_next

(

LexState *

ls

)

Definition at line 500 of file llex.c.

References LexState::lastline, LexState::linenumber, llex(), LexState::lookahead, Token::seminfo, LexState::t, TK_EOS, and Token::token.

Referenced by checknext(), fieldsel(), forstat(), funcargs(), funcstat(), gotostat(), luaY_parser(), parlist(), prefixexp(), primaryexp(), repeatstat(), simpleexp(), statement(), str_checkname(), subexpr(), test_then_block(), testnext(), whilestat(), and yindex().

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void luaX_setinput	(	lua_State *	L,
		LexState *	ls,
		ZIO *	z,
		TString *	source,
		int	firstchar
	)

Definition at line 156 of file llex.c.

References LexState::buff, LexState::current, LexState::decpoint, LexState::envn, LexState::fs, LexState::L, LexState::lastline, LexState::linenumber, LexState::lookahead, LUA_ENV, LUA_MINBUFFER, luaS_fix, luaS_new(), luaZ_resizebuffer, LexState::source, Token::token, and LexState::z.

Referenced by luaY_parser().

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l_noret luaX_syntaxerror	(	LexState *	ls,
		const char *	msg
	)

Definition at line 114 of file llex.c.

References lexerror(), LexState::t, and Token::token.

Referenced by check_match(), error_expected(), errorlimit(), fixjump(), forstat(), funcargs(), inclinenumber(), luaK_checkstack(), luaK_setlist(), parlist(), prefixexp(), and semerror().

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const char* luaX_token2str	(	LexState *	ls,
		int	token
	)

Definition at line 75 of file llex.c.

References cast, FIRST_RESERVED, LexState::L, lisprint, lua_assert, LUA_QL, LUA_QS, luaO_pushfstring(), luaX_tokens, and TK_EOS.

Referenced by check_match(), error_expected(), and txtToken().

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static void read_long_string	(	LexState *	ls,
		SemInfo *	seminfo,
		int	sep
	)			[static]

Definition at line 256 of file llex.c.

References LexState::buff, LexState::current, currIsNewline, EOZ, inclinenumber(), lexerror(), luaX_newstring(), luaZ_buffer, luaZ_bufflen, luaZ_resetbuffer, next, save(), save_and_next, skip_sep(), TK_EOS, and SemInfo::ts.

Referenced by llex().

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static void read_numeral	(	LexState *	ls,
		SemInfo *	seminfo
	)			[static]

Definition at line 225 of file llex.c.

References LexState::buff, buff2d, buffreplace(), check_next(), LexState::current, LexState::decpoint, lisdigit, lislalnum, lua_assert, SemInfo::r, save(), save_and_next, and trydecpoint().

Referenced by llex().

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static void read_string	(	LexState *	ls,
		int	del,
		SemInfo *	seminfo
	)			[static]

Definition at line 329 of file llex.c.

References LexState::buff, LexState::current, currIsNewline, EOZ, escerror(), inclinenumber(), lexerror(), lisdigit, lisspace, luaX_newstring(), luaZ_buffer, luaZ_bufflen, next, readdecesc(), readhexaesc(), save(), save_and_next, TK_EOS, TK_STRING, and SemInfo::ts.

Referenced by llex().

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static int readdecesc

(

LexState *

ls

)

[static]

Definition at line 315 of file llex.c.

References LexState::current, escerror(), lisdigit, and next.

Referenced by read_string().

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static int readhexaesc

(

LexState *

ls

)

[static]

Definition at line 301 of file llex.c.

References escerror(), lisxdigit, luaO_hexavalue(), and next.

Referenced by read_string().

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static void save	(	LexState *	ls,
		int	c
	)			[static]

Definition at line 52 of file llex.c.

References LexState::buff, Mbuffer::buffer, cast, LexState::L, lexerror(), luaZ_bufflen, luaZ_resizebuffer, luaZ_sizebuffer, and MAX_SIZET.

Referenced by playsingle_controller::before_human_turn(), savegame::save_index_class::data(), events::console_handler::do_save(), events::console_handler::do_save_quit(), escerror(), play_game(), playsingle_controller::play_scenario(), replay_controller::process_oos(), playmp_controller::process_oos(), play_controller::process_oos(), read_long_string(), read_numeral(), read_string(), play_controller::save_game(), play_controller::save_replay(), wesnothd::game::start_game(), and txtToken().

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static int skip_sep

(

LexState *

ls

)

[static]

Definition at line 243 of file llex.c.

References preferences::editor::TransitionUpdateMode::count, LexState::current, lua_assert, and save_and_next.

Referenced by llex(), and read_long_string().

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static void trydecpoint	(	LexState *	ls,
		SemInfo *	seminfo
	)			[static]

Definition at line 212 of file llex.c.

References LexState::buff, buff2d, buffreplace(), LexState::decpoint, getlocaledecpoint, lexerror(), SemInfo::r, and TK_NUMBER.

Referenced by read_numeral().

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static const char* txtToken	(	LexState *	ls,
		int	token
	)			[static]

Definition at line 91 of file llex.c.

References LexState::buff, LexState::L, LUA_QS, luaO_pushfstring(), luaX_token2str(), luaZ_buffer, save(), TK_NAME, TK_NUMBER, and TK_STRING.

Referenced by lexerror().

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---

Variable Documentation

const char* const luaX_tokens[] [static]

Initial value:

 {
    "and", "break", "do", "else", "elseif",
    "end", "false", "for", "function", "goto", "if",
    "in", "local", "nil", "not", "or", "repeat",
    "return", "then", "true", "until", "while",
    "..", "...", "==", ">=", "<=", "~=", "::", "<eof>",
    "<number>", "<name>", "<string>"
}

Definition at line 36 of file llex.c.

Referenced by luaX_init(), and luaX_token2str().