lexer.c 文件参考

#include <stdlib.h>
#include <math.h>
#include "charset.h"
#include "print.h"
#include "printout.h"
#include "io.h"
#include "expand.h"
#include "error.h"
#include "hash.h"
#include "mem.h"
#include "box.h"
#include "texmath.h"
#include "align.h"
#include "page.h"
#include "lexer.h"

lexer.c 的引用(Include)关系图:

宏定义
#define	CHECK_OUTER
#define	process_cmd    if (_cur_cmd >= OUTER_CALL) CHECK_OUTER;
#define	Process_cs

函数
UChar	get_maxinstack ()
void	lexer_semantic_init ()
	[#215] 更多...
void	print_mode (Integer m)
void	pushnest (void)
	[#216] enter a new semantic level, save the old. 更多...
void	popnest (void)
	[#217] leave a semantic level, re-enter the old. 更多...
void	showactivities (void)
	[#218] displays what TEX is working on, at all levels. 更多...
void	showtokenlist (Integer p, Integer q, Integer l)
	[p117#292] 更多...
void	token_show (Pointer p)
	[p118#295] display a token list, given a pointer to its reference count. 更多...
void	print_meaning (EightBits _cmd, HalfWord _chr)
	[p118#296] displays cur cmd and cur chr in symbolic form, including the expansion of a macro or mark. 更多...
void	showcurcmdchr (void)
	[p120#299] displays the current command. 更多...
void	runaway (void)
	[#306] uses scanner status to print a warning message when a subfile has ended, and at certain other crucial times. 更多...
void	showcontext (void)
	[#311] prints where the scanner is. 更多...
void	begintokenlist (HalfWord p, QuarterWord t)
void	endtokenlist (void)
	[#324] leave a token-list input level 更多...
void	backinput (void)
	[#325] undoes one token of input 更多...
void	backerror (void)
	[#327] back up one token and call error 更多...
void	inserror (void)
	[#327] back up one inserted token and call error 更多...
void	beginfilereading (void)
	[#328] starts a new level of input for lines of characters to be read from a file, or as an insertion from the terminal. 更多...
void	endfilereading (void)
	[#329] variables must be downdated when such a level of input is finished 更多...
void	clearforerrorprompt (void)
	[#330] removes completed error-inserted lines from memory 更多...
Boolean	init_lexer (void)
	[#331] 初始化变量 更多...
static int	check_outer_validity (int local_curcs)
	[P134#336] 更多...
static int	hex_to_cur_chr (int c, int cc)
static void	_get_next_helper (Boolean no_new_control_sequence)
void	get_next (void)
void	firm_up_the_line (void)
	[#363] If the user has set the pausing parameter to some positive value, and if nonstop mode has not beenselected. 更多...
void	get_token (void)
	[#365] 更多...
HalfWord	_pack_tok (Pointer _cs, EightBits _cmd, HalfWord _chr)
	[p143#365] 辅助函数 更多...

变量
ListStateRecord	nest [NEST_SIZE+1]
	[ #211~219: PART 16: THE SEMANTIC NEST ] 更多...
UChar	nest_ptr
UChar	max_nest_stack
ListStateRecord	cur_list
Int16	shown_mode
EightBits	curcmd
	[#297]: current command set by get_next a command code from the long list of codes given above. 更多...
HalfWord	curchr
	[#297]: operand of current command a character code or other modifier of the command code. 更多...
Pointer	curcs
	[#297]: control sequence found here, zero if none found the eqtb location of the current control sequence. 更多...
HalfWord	curtok
	[#297]: packed representative of curcmd and curchr. 更多...
InStateRecord	inputstack [STACK_SIZE+1]
	[#301]: 更多...
UChar	inputptr
	[#301]: first unused location of input stack. 更多...
static UChar	maxinstack
	[#301]: largest value of input ptr when pushing. 更多...
InStateRecord	cur_input
	xref[]: 35, 36, 87, 301, 302, 311, 321, 322, 534, 1131, error, open_log_file 更多...
static UChar	inopen
	[#304] the number of lines in the buffer, less one 更多...
char	openparens
	the number of open text files xref[2, only tex.c]: start_input, final_cleanup 更多...
Integer	line
	current line number in the current source file. 更多...
FILE *	inputfile [MAX_IN_OPEN]
	xref[]: start_input 更多...
static Integer	linestack [MAX_IN_OPEN]
char	scanner_status
	[#305] can a subfile end now? 更多...
Pointer	warning_index
	[#305] identifier relevant to non-normal scanner status 更多...
Pointer	defref
	[#305] reference count of token list being defined 更多...
Pointer	paramstack [PARAM_SIZE+1]
	[#308] token list pointers for parameters. / xref[only tex.c]: macrocall 更多...
int	paramptr
	[#308] first unused entry in param stack. / xref[only tex.c]: macrocall 更多...
Integer	maxparamstack
	[#308] largest value of param ptr, will be ≤ param size + 9 . / xref[only tex.c]: macrocall 更多...
Integer	align_state
	[#309] group level with respect to current alignment. 更多...
UChar	baseptr
	[#310] shallowest level shown by show context. 更多...
Pointer	parloc
HalfWord	partoken
Boolean	force_eof

函数说明

_pack_tok()

HalfWord _pack_tok	(	Pointer	_cs,
		EightBits	_cmd,
		HalfWord	_chr
	)

[p143#365] 辅助函数

get_maxinstack()

UChar get_maxinstack

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