#ifndef DAVIS_SLANG_H_ #define DAVIS_SLANG_H_ /* * Copyright (c) 1992, 1994 John E. Davis * All rights reserved. * * Permission is hereby granted, without written agreement and without * license or royalty fees, to use, copy, and distribute this * software and its documentation for any purpose, provided that the * above copyright notice and the following two paragraphs appear in * all copies of this software. Permission is not granted to modify this * software for any purpose without written agreement from John E. Davis. * * IN NO EVENT SHALL JOHN E. DAVIS BE LIABLE TO ANY PARTY FOR DIRECT, * INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF * THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF JOHN E. DAVIS * HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * JOHN E. DAVIS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" * BASIS, AND JOHN E. DAVIS HAS NO OBLIGATION TO PROVIDE MAINTENANCE, * SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. */ #ifdef FLOAT_TYPE #ifndef USE_DOUBLE #define USE_DOUBLE #endif #endif #ifdef __cplusplus extern "C" { #endif /* ---------------------------- Generic Macros ----------------------------- */ /* __SC__ is defined for Symantec C++ DOS386 is defined for -mx memory model, 32 bit DOS extender. */ #ifdef VOID #undef VOID #endif #ifndef MALLOC_DEBUG #if defined(msdos) && !defined(DOS386) # ifdef __SC__ # include # endif # define VOID void # include # define FREE(buf) farfree((void far *)(buf)) # define MALLOC(x) farmalloc((unsigned long) (x)) # define REALLOC(buf, n) farrealloc((void far *) (buf), (unsigned long) (n)) # define CALLOC(n, m) farcalloc((unsigned long) (n), (unsigned long) (m)) #else # ifndef NO_STDLIB_H # include # endif # define VOID unsigned char # ifdef VMS # define FREE VAXC$FREE_OPT # define MALLOC VAXC$MALLOC_OPT # define REALLOC VAXC$REALLOC_OPT # define CALLOC VAXC$CALLOC_OPT # else # define FREE(p) free((VOID *)(p)) # define MALLOC malloc # define REALLOC realloc # define CALLOC calloc # endif #endif #else #define VOID unsigned char #define MALLOC(x) SLdebug_malloc((unsigned long) (x)) #define FREE(x) SLdebug_free((unsigned char *)(x)) #define CALLOC(n, m) SLdebug_calloc((unsigned long) (n), (unsigned long)(m)) #define REALLOC(p, x) SLdebug_realloc((unsigned char *)(p), (unsigned long)(x)) extern unsigned char *SLdebug_malloc (unsigned long); extern unsigned char *SLdebug_calloc (unsigned long, unsigned long); extern unsigned char *SLdebug_realloc (unsigned char *, unsigned long); extern void SLdebug_free (unsigned char *); #endif /* MALLOC_DEBUG */ /* If your compiler does not have memory.h, ignore this line */ #ifndef VMS #include #endif #ifdef HAS_MEMSET #define MEMSET memset #else #define MEMSET jed_memset extern void jed_memset(char *, char, int); #endif #ifdef HAS_MEMCHR #define MEMCHR memchr #else #define MEMCHR jed_memchr extern char *jed_memchr(register char *, register char, register int); #endif #ifdef HAS_MEMCPY #define MEMCPY memcpy #else #define MEMCPY jed_memcpy extern char *jed_memcpy(char *, char *, int); #endif #ifdef HAS_MEMCMP #define MEMCMP memcmp #else #define MEMCMP jed_memcmp extern int jed_memcmp(char *, char *, int); #endif /* ------------------- S-Lang Stuff -------------------------------*/ #define FLOAT double #define LANG_MAX_NAME_LEN 30 /* maximum length of an identifier */ /* first char in identifiers is the hash */ typedef struct SLang_Name_Type { #ifdef SLANG_STATS int n; /* number of times referenced */ #endif char name[LANG_MAX_NAME_LEN + 2]; /* [0] is hash */ unsigned short type; long addr; } SLang_Name_Type; typedef struct SLang_Load_Type { int type; /* 'F' = file, 'S' = String, etc.. */ long name; /* file name, string address, ... */ long handle; /* FILE *, string address, etc... */ char *buf; /* buffer for file, etc... */ char *(*read)(struct SLang_Load_Type *); /* function to call to read obj */ int n; /* line number, etc... */ char token[256]; /* token to be parsed */ char *ptr; /* input pointer to next line in object * to be read. */ int ofs; /* offset from buf where last read * took place */ } SLang_Load_Type; extern volatile int SLang_Error; /* Non zero if error occurs. Must be reset to zero to continue. */ extern int SLang_Traceback; /* If non-zero, dump an S-Lang traceback upon error. Available as _traceback in S-Lang. */ extern char *SLang_User_Prompt; /* Prompt to use when reading from stdin */ extern char SLang_Version[]; extern void (*SLang_Error_Routine)(char *); /* Pointer to application dependent error messaging routine. By default, messages are displayed on stderr. */ extern void (*SLang_Exit_Error_Hook)(char *); extern void SLang_exit_error (char *); extern void (*SLang_Dump_Routine)(char *); /* Called if S-Lang traceback is enabled as well as other debugging routines (e.g., trace). By default, these messages go to stderr. */ extern void (*SLang_Interrupt)(void); /* function to call whenever inner interpreter is entered. This is a good place to set SLang_Error to USER_BREAK. */ extern void (*SLang_User_Clear_Error)(void); /* function that gets called when '_clear_error' is called. */ extern int (*SLang_User_Open_Slang_Object)(SLang_Load_Type *); extern int (*SLang_User_Close_Slang_Object)(SLang_Load_Type *); /* user defined loading routines. */ /* If non null, these call C functions before and after a slang function. */ extern void (*SLang_Enter_Function)(char *); extern void (*SLang_Exit_Function)(char *); /* Functions: */ extern int init_SLang(void); /* This function is mandatory and must be called by all applications */ extern int init_SLfiles(void); /* called if fputs, fgets, etc are need in S-Lang */ extern int init_SLmath(void); /* called if math functions sin, cos, etc... are needed. */ extern int init_SLunix(void); /* unix system functions chmod, stat, etc... */ extern int init_SLmatrix(void); int SLang_add_table(SLang_Name_Type *, char *); /* add application dependent function table p1 to S-Lang. A name p2 less * than 32 characters must also be supplied. * Returns 0 upon failure or 1 upon success. */ extern int SLang_load_object(SLang_Load_Type *); extern int SLang_load_file(char *); /* Load a file of S-Lang code for interpreting. If the parameter is NULL, input comes from stdin. */ extern void SLang_restart(int); /* should be called if an error occurs. If the passed integer is * non-zero, items are popped off the stack; otherwise, the stack is * left intact. Any time the stack is believed to be trashed, this routine * should be called with a non-zero argument (e.g., if setjmp/longjmp is * called). */ extern void SLang_byte_compile_file(char *, int *); /* takes a file of S-Lang code and ``byte-compiles'' it for faster * loading. The new filename is equivalent to the old except that a `c' is * appended to the name. (e.g., init.sl --> init.slc). If the second * parameter is non-zero, preprocess the file only. */ extern void SLang_autoload(char *, char *); /* Automatically load S-Lang function p1 from file p2. This function is also available via S-Lang */ extern char *SLang_load_string(char *); /* Like SLang_load_file except input is from a null terminated string. */ extern void SLang_do_pop(void); /* pops item off stack and frees any memory associated with it */ extern int SLang_pop_integer(int *); /* pops integer *p0 from the stack. Returns 0 upon success and non-zero * if the stack is empty or a type mismatch occurs, setting SLang_Error. */ extern int SLang_pop_string(char **, int *); /* pops string *p0 from stack. If *p1 is non-zero, the string must be * freed after its use. DO NOT FREE p0 if *p1 IS ZERO! Returns 0 upon * success */ extern int SLang_pop_float(FLOAT *, int *, int *); /* Pops float *p1 from stack. If *p3 is non-zero, *p1 was derived from the integer *p2. Returns zero upon success. */ extern long *SLang_pop_pointer(unsigned short *, int *); /* Returns a pointer to object of type *p1 on top of stack. If *p2 is non-zero, the Object must be freed after use. */ extern void SLang_push_string(char *); /* Push string p1 onto stack */ extern void SLang_push_integer(int); /* push integer p1 on stack */ extern void SLang_push_malloced_string(char *); /* The normal SLang_push_string mallocs space for the string. This one does not. DO NOT FREE IT IF YOU USE THIS ROUTINE */ extern int SLdefine_for_ifdef (char *); /* Adds a string to the SLang #ifdef preparsing defines. SLang already defines MSDOS, UNIX, and VMS on the appropriate system. */ extern int SLang_is_defined(char *); /* Return non-zero is p1 is defined otherwise returns 0. */ extern int SLang_run_hooks(char *, char *, char *); /* calls S-Lang function p1 pushing strings p2 and p3 onto the stack * first. If either string is NULL, it is not pushed. If p1 is not * defined, 0 is returned. */ extern int SLang_execute_function(char *); /* Call S-Lang function p1 */ extern char *SLang_find_name(char *); /* Return a pointer to p1 in table if it is defined. Returns NULL * otherwise. This is useful when one wants to avoid redundant strings. */ extern char *SLang_rpn_interpret(char *); /* Interpret string as reverse polish notation */ extern void SLang_doerror(char *); /* set SLang_Error and display p1 as error message */ extern int SLang_add_array(char *, long *, int, int, int, int, unsigned char, unsigned char); /* This function has not been tested thoroughly yet. Its purpose is to * allow a S-Lang procedure to access a C array. For example, suppose that * you have an array of 100 ints defined as: * * int c_array[100]; * * By calling something like: * * SLang_add_array ("array_name", (long *) c_array, 1, 100, 0, 0, 'i', LANG_IVARIABLE); * * the array can be accessed by the name 'array_name'. This function * returns -1 upon failure. The 3rd argument specifies the dimension * of the array, the 4th, and 5th arguments specify how many elements * there are in the x,y, and z directions. The last argument must * be one of: * * LANG_IVARIABLE: indicates array is writable * LANG_IVARIABLE: indicates array is read only */ extern int SLang_free_array_handle (int); /* This routine may be called by application to free array handle created by * the application. Returns 0 upon success, -1 if the handle is invalid and * -2 if the handle is not associated with a C array. */ extern char *SLang_extract_list_element(char *, int *, int*); extern void SLexpand_escaped_string (register char *, register char *, register char *); extern SLang_Name_Type *SLang_get_function (char *); /* The parameter is the name of a user defined S-Lang function. This * routine returns NULL if the function does not exist or it returns the * a pointer to it in an internal S-Lang table. This pointer can be used * by 'SLexecute_function' to call the function directly from C. */ extern void SLexecute_function(SLang_Name_Type *); /* This function allows an application to call a S-Lang function from within * the C program. The parameter must be non-NULL and must have been * previously obtained by a call to 'SLang_get_function'. */ extern char *SLmake_nstring (char *, int); /* Returns a null terminated string made from the first n characters of the * string. */ /* SLang tty interface */ extern SLtt_Baud_Rate; extern SLang_TT_Baud_Rate; extern int SLang_init_tty (int, int, int); /* Initializes the tty for single character input. The first parameter *p1 * is the value 0-255 to be used for the abort character. If the second * parameter p2 is non-zero, flow control is enabled. If the last * parmeter p3 is zero, output processing is NOT turned on. A value of * zero is required for the screen management routines. * Returns 0 upon success. * In addition, if SLang_TT_Baud_Rate == 0 when this function is called, * SLang will attempt to determine the terminals baud rate. As far as * the SLang library is concerned, if SLang_TT_Baud_Rate is less than or * equal to zero, the baud rate is effectively infinite. */ extern void SLang_reset_tty (void); /* Resets tty to what it was prior to a call to SLang_init_tty */ extern unsigned int SLang_getkey (void); /* reads a single key from the tty. If the read fails, 0xFFFF is returned. */ extern void SLang_ungetkey_string (unsigned char *, int); extern void SLang_buffer_keystring (unsigned char *, int); extern void SLang_ungetkey (unsigned char); extern void SLang_flush_input (void); extern int SLang_input_pending (int); extern int SLang_Abort_Char; /* The value of the character (0-255) used to trigger SIGINT */ extern int SLang_Ignore_User_Abort; /* If non-zero, pressing the abort character will not result in USER_BREAK * SLang_Error. */ extern void SLang_set_abort_signal (void (*)(int)); /* If SIGINT is generated, the function p1 will be called. If p1 is NULL * the SLang_default signal handler is called. This sets SLang_Error to * USER_BREAK. I suspect most users will simply want to pass NULL. */ extern volatile int SLKeyBoard_Quit; /* --------------- SLang_keymap interface ----------------------- */ typedef struct SLKeymap_Function_Type { char *name; int (*f)(void); } SLKeymap_Function_Type; typedef struct SLang_Key_Type { unsigned char str[13]; /* key sequence */ VOID *f; /* function to invoke */ unsigned char type; /* type of function */ struct SLang_Key_Type *next; /* */ } SLang_Key_Type; #define MAX_KEYMAP_NAME_LEN 8 typedef struct SLKeyMap_List_Type { char name[MAX_KEYMAP_NAME_LEN + 1]; SLang_Key_Type *keymap; SLKeymap_Function_Type *functions; /* intrinsic functions */ } SLKeyMap_List_Type; /* This is arbitrary but I have got to start somewhere */ #ifdef msdos #define SLANG_MAX_KEYMAPS 10 #else #define SLANG_MAX_KEYMAPS 30 #endif extern SLKeyMap_List_Type SLKeyMap_List[SLANG_MAX_KEYMAPS]; /* these better be inited to 0! */ #define SLKEY_F_INTERPRET 0x01 #define SLKEY_F_INTRINSIC 0x02 extern char *SLang_process_keystring(char *); extern int SLang_define_key1(char *, VOID *, unsigned char, SLKeyMap_List_Type *); /* define key p1 in keymap p4 to invoke function p2. If type p3 is given by * SLKEY_F_INTRINSIC, p2 is an intrinsic function, else it is a string to be * passed to the interpreter for evaluation. The return value is important. * It returns 0 upon success, -1 upon malloc error, and -2 if the key is * inconsistent. SLang_Error is set upon error. */ extern int SLang_define_key(char *, char *, SLKeyMap_List_Type *); /* Like define_key1 except that p2 is a string that is to be associated with * a function in the functions field of p3. This routine calls define_key1. */ extern void SLang_undefine_key(char *, SLKeyMap_List_Type *); extern SLKeyMap_List_Type *SLang_create_keymap(char *, SLKeyMap_List_Type *); /* create and returns a pointer to a new keymap named p1 created by copying * keymap p2. If p2 is NULL, it is up to the calling routine to initialize * the keymap. */ extern char *SLang_make_keystring(unsigned char *); extern SLang_Key_Type *SLang_do_key(SLKeyMap_List_Type *, int (*)(void)); /* read a key using keymap p1 with getkey function p2 */ extern VOID *SLang_find_key_function(char *, SLKeyMap_List_Type *); extern SLKeyMap_List_Type *SLang_find_keymap(char *); extern int SLang_Last_Key_Char; extern int SLang_Key_TimeOut_Flag; /* --------------- SLang_read_line interface ----------------------- */ typedef struct SLang_Read_Line_Type { struct SLang_Read_Line_Type *prev, *next; unsigned char *buf; int buf_len; /* number of chars in the buffer */ int num; /* num and misc are application specific*/ int misc; } SLang_Read_Line_Type; /* Maximum size of display */ #define SLRL_DISPLAY_BUFFER_SIZE 156 typedef struct { SLang_Read_Line_Type *root, *tail, *last; unsigned char *buf; /* edit buffer */ int buf_len; /* sizeof buffer */ int point; /* current editing point */ int tab; /* tab width */ int len; /* current line size */ /* display variables */ int edit_width; /* length of display field */ int curs_pos; /* current column */ int start_column; /* column offset of display */ int dhscroll; /* amount to use for horiz scroll */ char *prompt; VOID *last_fun; /* last function executed by rl */ /* These two contain an image of what is on the display */ unsigned char upd_buf1[SLRL_DISPLAY_BUFFER_SIZE]; unsigned char upd_buf2[SLRL_DISPLAY_BUFFER_SIZE]; unsigned char *old_upd, *new_upd; /* pointers to previous two buffers */ int new_upd_len, old_upd_len; /* length of output buffers */ SLKeyMap_List_Type *keymap; /* tty variables */ unsigned int flags; /* */ unsigned int (*getkey)(void); /* getkey function -- required */ void (*tt_goto_column)(int); void (*tt_insert)(char); void (*update_hook)(unsigned char *, int, int); /* The update hook is called with a pointer to a buffer p1 that contains * an image of what the update hook is suppoed to produce. The length * of the buffer is p2 and after the update, the cursor is to be placed * in column p3. */ } SLang_RLine_Info_Type; extern int SLang_RL_EOF_Char; #define SLRL_USE_ANSI 0x01 extern SLang_Read_Line_Type * SLang_rline_save_line (SLang_RLine_Info_Type *); extern int SLang_init_readline (SLang_RLine_Info_Type *); extern int SLang_read_line (SLang_RLine_Info_Type *); /* ---------------------------------------------------------------------- */ extern int SLang_extract_token(char **, char *, int); /* returns 0 upon failure and non-zero upon success. The first parameter * is a pointer to the input stream which this function will bump along. * The second parameter is the buffer where the token is placed. The third * parameter is used internally by the S-Lang library and should be 0 for * user applications. */ /* ----------------------------------------------------------------------- */ /* Screen Output functions */ typedef unsigned long SLtt_Char_Type; #define SLTT_BOLD_MASK 0x01000000 #define SLTT_BLINK_MASK 0x02000000 #define SLTT_ULINE_MASK 0x04000000 #define SLTT_REV_MASK 0x08000000 extern int SLtt_Screen_Rows; extern int SLtt_Screen_Cols; extern int SLtt_Term_Cannot_Insert; extern int SLtt_Term_Cannot_Scroll; extern int SLtt_Use_Ansi_Colors; extern int SLtt_Ignore_Beep; extern int SLtt_Msdos_Cheap_Video; extern int SLtt_flush_output (void); extern void SLtt_set_scroll_region(int, int); extern void SLtt_reset_scroll_region(void); extern void SLtt_bold_video (void); extern void SLtt_goto_rc(int, int); extern void SLtt_begin_insert(void); extern void SLtt_end_insert(void); extern void SLtt_del_eol(void); extern void SLtt_delete_nlines(int); extern void SLtt_delete_char(void); extern void SLtt_erase_line(void); extern void SLtt_normal_video(void); extern void SLtt_cls(void); extern void SLtt_beep(void); extern void SLtt_reverse_index(int); extern void SLtt_smart_puts(unsigned short *, unsigned short *, int, int); extern void SLtt_write_string (char *); extern void SLtt_putchar(char); extern void SLtt_init_video (void); extern void SLtt_reset_video (void); extern void SLtt_get_terminfo(void); #if defined(VMS) || defined(unix) extern void SLtt_enable_cursor_keys(void); extern void SLtt_set_term_vtxxx(int *); extern void SLtt_set_color_esc (int, char *); extern void SLtt_wide_width(void); extern void SLtt_narrow_width(void); #endif extern void SLtt_set_color (int, char *, char *, char *); extern void SLtt_set_mono (int, char *, SLtt_Char_Type); /* ----------------------------------------------------------------------- */ /* Screen management functions */ #include extern void SLsmg_erase_eol (void); extern void SLsmg_gotorc (int, int); extern void SLsmg_erase_eos (void); extern void SLsmg_reverse_video (void); extern void SLsmg_set_color (int); extern void SLsmg_normal_video (void); extern void SLsmg_printf (char *, ...); extern void SLsmg_vprintf (char *, va_list); extern void SLsmg_write_string (char *); extern void SLsmg_write_char (char); extern void SLsmg_write_nchars (char *, int); extern void SLsmg_cls (void); extern void SLsmg_refresh (void); extern void SLsmg_touch_lines (int, int); extern int SLsmg_init_smg (void); extern void SLsmg_reset_smg (void); extern unsigned short SLsmg_char_at(void); extern int SLsmg_set_start_column (int); /* ----------------------------------------------------------------------- */ /* subtypes of literal (static) and data (dynamic)*/ #define VOID_TYPE 1 #define INT_TYPE 2 #define STRING_TYPE 3 #define ARRAY_TYPE 4 #ifdef FLOAT_TYPE #undef FLOAT_TYPE #define FLOAT_TYPE 5 #endif #define LANG_OBJ_TYPE 6 #define CHAR_TYPE 7 #define INTP_TYPE 8 /* This combines binary with literal integer */ #define LANG_INTEGER_BINARY 0x1 #define LANG_INTEGER_CMP 0x2 /* These two guys combine local variables and binary operations */ #define LANG_LOCAL_BINARY 0x3 #define LANG_LOCAL_CMP 0x4 #define LANG_LVARIABLE 0x05 #define LANG_CMP 0x06 #define LANG_BINARY 0x07 #define LANG_LINTRINSIC 0x08 #define LANG_LFUNCTION 0x09 #define LANG_INTRINSIC 0x0A #define LANG_FUNCTION 0x0B #define LANG_LITERAL 0x0C /* constant objects */ #define LANG_BLOCK 0x0D #define LANG_DIRECTIVE 0x0E #define LANG_UNARY 0x0F #define LANG_GVARIABLE 0x10 #define LANG_IVARIABLE 0x11 /* intrinsic variables */ /* Note!!! For Macro MAKE_VARIABLE below to work, LANG_IVARIABLE Must be 1 less than LANG_RVARIABLE!!! */ #define LANG_RVARIABLE 0x12 /* read only variable */ /* These 3 MUST be in this order too ! */ #define LANG_RETURN 0x13 #define LANG_BREAK 0x14 #define LANG_CONTINUE 0x15 #define LANG_EXCH 0x16 #define LANG_LABEL 0x17 #define LANG_LOBJPTR 0x18 #define LANG_GOBJPTR 0x19 #define LANG_X_ERROR 0x1A /* These must be in this order */ #define LANG_X_USER0 0x1B #define LANG_X_USER1 0x1C #define LANG_X_USER2 0x1D #define LANG_X_USER3 0x1E #define LANG_X_USER4 0x1F #define LANG_DATA 0x30 /* real objects which may be destroyed */ /* error codes, severe errors are less than 0 */ #define SL_INVALID_PARM -6 #define SL_MALLOC_ERROR -5 #define INTERNAL_ERROR -4 #define UNKNOWN_ERROR -3 #define STACK_OVERFLOW -1 #define STACK_UNDERFLOW -2 #define INTRINSIC_ERROR 1 /* Intrinsic error is an error generated by intrinsic functions */ #define USER_BREAK 2 #define UNDEFINED_NAME 3 #define SYNTAX_ERROR 4 #define DUPLICATE_DEFINITION 5 #define TYPE_MISMATCH 6 #define READONLY_ERROR 7 #define DIVIDE_ERROR 8 /* object could not be opened */ #define SL_OBJ_NOPEN 9 /* unknown object */ #define SL_OBJ_UNKNOWN 10 extern void SLadd_name(char *, long, unsigned short); #define SLANG_MAKE_TYPE(out, in)\ ((((unsigned short)(out) | ((unsigned short) (in) << 4)) << 8) | (unsigned short) LANG_INTRINSIC) #ifdef SLANG_STATS #define MAKE_INTRINSIC(n, f, out, in) \ {0, n, ((out | (in << 4)) << 8) | LANG_INTRINSIC, (long) f} #define MAKE_VARIABLE(n, v, t, r) \ {0, n, (LANG_IVARIABLE + r) | (t << 8), (long) v} #else #define MAKE_INTRINSIC(n, f, out, in) \ {n, ((out | (in << 4)) << 8) | LANG_INTRINSIC, (long) f} #define MAKE_VARIABLE(n, v, t, r) \ {n, (LANG_IVARIABLE + r) | (t << 8), (long) v} #endif #define SLANG_END_TABLE MAKE_INTRINSIC("", 0, 0, 0) /* Uppercase, lowercase macros */ extern void SLang_define_case(int *, int *); extern void SLang_init_case_tables (void); extern unsigned char Chg_UCase_Lut[256]; extern unsigned char Chg_LCase_Lut[256]; #define UPPER_CASE(x) (Chg_UCase_Lut[(unsigned char) (x)]) #define LOWER_CASE(x) (Chg_LCase_Lut[(unsigned char) (x)]) #define CHANGE_CASE(x) (((x) == Chg_LCase_Lut[(unsigned char) (x)]) ?\ Chg_UCase_Lut[(unsigned char) (x)] : Chg_LCase_Lut[(unsigned char) (x)]) typedef struct { unsigned char *pat; /* regular expression pattern */ unsigned char *buf; /* buffer for compiled regexp */ int buf_len; /* length of buffer */ int case_sensitive; /* 1 if match is case sensitive */ int must_match; /* 1 if line must contain substring */ int must_match_bol; /* true if it must match beginning of line */ unsigned char must_match_str[16]; /* 15 char null term substring */ int osearch; /* 1 if ordinary search suffices */ int beg_matches[10]; /* offset of start of \( */ int end_matches[10]; /* length of nth submatch * Note that the entire match corresponds * to \0 */ int offset; /* offset to be added to beg_matches */ } SLRegexp_Type; extern unsigned char *SLang_regexp_match(unsigned char *, int, SLRegexp_Type *); extern int SLang_regexp_compile (SLRegexp_Type *); #ifdef SLKEYMAPS /* Keymap routines and definitions */ typedef { char *name; int (*f) (void); } SLKeymap_Fun_Type; #endif /* ------------------------------------------------------------------------ */ /* cmd line definitions */ #define SLCMD_MAX_ARGS 10 typedef struct SLcmd_Cmd_Table_Type { struct SLcmd_Cmd_Type *table; int argc; char *string_args[SLCMD_MAX_ARGS]; int int_args[SLCMD_MAX_ARGS]; FLOAT float_args[SLCMD_MAX_ARGS]; } SLcmd_Cmd_Table_Type; typedef struct SLcmd_Cmd_Type { int (*cmdfun)(int, struct SLcmd_Cmd_Table_Type *); char cmd[32]; char arg_type[SLCMD_MAX_ARGS]; } SLcmd_Cmd_Type; extern int SLcmd_execute_string (char *, SLcmd_Cmd_Table_Type *); /* ------------------------------------------------------------------------ */ /* search functions */ typedef struct { int cs; /* case sensitive */ unsigned char key[256]; int ind[256]; int key_len; int dir; } SLsearch_Type; extern int SLsearch_init (char *, int, int, SLsearch_Type *); /* This routine must first be called before any search can take place. * The second parameter specifies the direction of the search: greater than * zero for a forwrd search and less than zero for a backward search. The * third parameter specifies whether the search is case sensitive or not. * The last parameter is a pointer to a structure that is filled by this * function and it is this structure that must be passed to SLsearch. */ unsigned char *SLsearch (unsigned char *, unsigned char *, SLsearch_Type *); /* To use this routine, you must first call 'SLsearch_init'. Then the first * two parameters p1 and p2 serve to define the region over which the search * is to take place. The third parameter is the structure that was previously * initialized by SLsearch_init. * * The routine returns a pointer to the match if found otherwise it returns * NULL. */ #ifdef __cplusplus } #endif /* _davis_slang_h_ */ #endif