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- /*****************************************************************************
- * Routines to grab the parameters from the command line : *
- * All the routines except the main one, starts with GA (Get Arguments) to *
- * prevent from names conflicts. *
- * It is assumed in these routine that any pointer, for any type has the *
- * same length (i.e. length of int pointer is equal to char pointer etc.) *
- * *
- * The following routines are available in this module: *
- * 1. int GAGetArgs(argc, argv, CtrlStr, Variables...) *
- * where argc, argv as received on entry. *
- * CtrlStr is the contrl string (see below) *
- * Variables are all the variables to be set according to CtrlStr . *
- * Note that all the variables MUST be transfered by address. *
- * return 0 on correct parsing, otherwise error number (see GetArg.h). *
- * 2. GAPrintHowTo(CtrlStr) *
- * Print the control string to stderr, in the correct format needed. *
- * This feature is very useful in case of error during GetArgs parsing. *
- * Chars equal to SPACE_CHAR are not printed (regular spaces are NOT *
- * allowed, and so using SPACE_CHAR you can create space in PrintHowTo) . *
- * 3. GAPrintErrMsg(Error) *
- * Print the error to stderr, according to Error (usually returned by *
- * GAGetArgs). *
- * *
- * Notes: *
- * *
- * 1. This module assumes that all the pointers to all kind of data types *
- * have the same length and format, i.e. sizeof(int *) == sizeof(char * ). *
- * *
- * Gershon Elber Ver 0.2 Mar 88 *
- ******************************************************************************
- * History: *
- * 11 Mar 88 - Version 1.0 by Gershon Elber. *
- *****************************************************************************/
-
- #ifdef USE_VARARGS
- #include <varargs.h>
- #else
- #include <stdarg.h>
- #endif /* USE_VARARGS */
-
- #include <stdio.h>
- #include <ctype.h>
- #include <string.h>
- #include "irit_sm.h"
- #include "getarg.h"
- #include "imalloc.h"
-
- #define MAX_PARAM 100 /* maximum number of parameters allowed. */
- #define CTRL_STR_MAX_LEN 1024
-
- #define SPACE_CHAR '|' /* The character not to print using HowTo. */
-
- #ifndef TRUE
- #define TRUE -1
- #define FALSE 0
- #endif /* TRUE */
-
- #define ARG_OK 0
-
- #define ISSPACE(x) ((x) <= ' ') /* Not conventional - but works fine! */
- /* The two characters '%' and '!' are used in the control string: */
- #define ISCTRLCHAR(x) (((x) == '%') || ((x) == '!'))
-
- static char *GAErrorToken;/* On error code, ErrorToken is set to point on it.*/
-
- static int GATestAllSatis(char *CtrlStrCopy,
- char *CtrlStr,
- int *argc,
- char ***argv,
- int *Parameters[MAX_PARAM],
- int *ParamCount);
- static int GAUpdateParameters(int *Parameters[],
- int *ParamCount,
- char *Option,
- char *CtrlStrCopy,
- char *CtrlStr,
- int *argc,
- char ***argv);
- static int GAGetParmeters(int *Parameters[],
- int *ParamCount,
- char *CtrlStrCopy,
- char *Option,
- int *argc,
- char ***argv);
- static int GAGetMultiParmeters(int *Parameters[],
- int *ParamCount,
- char *CtrlStrCopy,
- int *argc,
- char ***argv);
- static void GASetParamCount(char *CtrlStr,
- int Max,
- int *ParamCount);
- static void GAByteCopy(char *Dst,
- char *Src,
- unsigned n);
- static int GAOptionExists(int argc,
- char **argv);
-
- /*****************************************************************************
- * DESCRIPTION: M
- * Routine to access command line arguments and interpret them, by getting M
- * access to the main routine's argc/argv interface and a control string that M
- * prescribes the expected options. M
- * Returns ARG_OK (0) is case of succesfull parsing, error code else... M
- * M
- * Format of CtrlStr format: M
- * The control string passed to GAGetArgs controls the way argv (argc) are M
- * parsed. Each entry in this string must have no spaces in it. M
- * The First Entry is the name of the program which is usually ignored M
- * except when GAPrintHowTo is called. All the other entries (except the M
- * last one which will be discussed shortly) must have the following format: M
- * 1. One letter which sets the option letter (i.e. 'x' for option '-x'). M
- * 2. '!' or '%' to determines if this option is really optional ('%') or M
- * it must be provided by the user ('!'). M
- * 3. '-' always. M
- * 4. Alpha numeric string, usually ignored, but used by GAPrintHowTo to M
- * describe the meaning of this option. M
- * 5. Sequences that start with either '!' or '%'. M
- * Again if '!' then this sequence must exists (only if its option flag M
- * is given), and if '%' it is optional. M
- * Each sequence will be followed by one or two characters which M
- * defines the kind of the input: M
- * 5.1. d, x, o, u - integer is expected (decimal, hex, octal base or M
- * unsigned). M
- * 5.2. D, X, O, U - long integer is expected (same as above). M
- * 5.3. f - float number is expected. M
- * 5.4. F - double number is expected. M
- * 5.5. s - string is expected. M
- * 5.6. *? - any number of '?' kind (d, x, o, u, D, X, O, U, f, F, s) M
- * will match this one. If '?' is numeric, it scans until M
- * none numeric input is given. If '?' is 's' then it scans M
- * up to the next option or end of argv. M
- * M
- * If the last parameter given in the CtrlStr, is not an option (i.e. the M
- * second char is not in ['!', '%'] and the third one is not '-'), all what M
- * remained from argv is hooked to it. M
- * M
- * The variables passed to GAGetArgs (starting from 4th parameter) MUST M
- * match the order of options in the CtrlStr. M
- * For each option, an address of an integer must be passed. This integer M
- * must initialized by 0. If that option is given in the command line, it M
- * will be set to one. Otherwise, this integer will not be affected. M
- * In addition, the sequences that might follow an option require the M
- * following parameter(s) to be passed M
- * 1. d, x, o, u - pointer to an integer (int *). M
- * 2. D, X, O, U - pointer to a long (long *). M
- * 3. f - pointer to a float (float *). M
- * 4. F - pointer to a double (double *). M
- * 5. s - pointer to a char * (char **). NO pre-allocation is required. M
- * 6. *? - TWO variables are passed for each such wild character M
- * request. The first variable is an address of an integer, and M
- * it will return the number of parameters actually hooked to M
- * this sequence. The second variable is a pointer to a pointer M
- * to type ? (? **). It will return an address of a vector of M
- * pointers of type ?, terminated with a NULL pointer. M
- * NO pre-allocation is required. M
- * These two variables behaves very much like the argv/argc M
- * pair and are used the "trap" unused command line options. M
- * M
- * Examples: M
- * M
- * "Example1 i%-OneInteger!d s%-Strings!*s j%- k!-Float!f Files!*s" V
- * Will match: Example1 -i 77 -s String1 String2 String3 -k 88.2 File1 File2 V
- * or match: Example1 -s String1 -k 88.3 -i 999 -j V
- * but not: Example1 -i 77 78 (i expects one integer, k must be specified).V
- * The option k must exists in the above example and if '-i' is prescribed M
- * one integer argument must follow it. M
- * In the first example, File1 & File2, will match Files in the control M
- * string. M
- * The order of the options in the command line is irrelevant. M
- * A call to GAPrintHowTo with this CtrlStr will print to stderr: M
- * M
- * Example1 [-i OneIngeter] [-s Strings...] [-j] -k Float Files... V
- * M
- * The parameters below are stdarg style and in fact are expecting the M
- * following: M
- * M
- * GAGetArgs(argc, argv, CtrlStr, ...); V
- * M
- * 1. argc, argv: The usual C interface from the main routine of the program. M
- * 2. CtrlStr: Defining the types/options to expect in the command line. M
- * 3. ...: list of addreses of variables to initialize according to M
- * parsed command line. M
- * M
- * PARAMETERS: M
- * va_alist: Do "man stdarg". M
- * ...: Rest of optional parameters M
- * *
- * RETURN VALUE: M
- * int: TRUE if command line was valid, FALSE otherwise. M
- * *
- * KEYWORDS: M
- * GAGetArgs, command line arguments M
- *****************************************************************************/
- #ifdef USE_VARARGS
- int GAGetArgs(int va_alist, ...)
- {
- va_list ap;
- int argc, i, Error = FALSE,
- *Parameters[MAX_PARAM], /* Save here parameter addresses. */
- ParamCount = 0;
- char **argv, *CtrlStr, *Option, CtrlStrCopy[CTRL_STR_MAX_LEN];
-
- va_start(ap);
-
- argc = va_arg(ap, int);
- argv = va_arg(ap, char **);
- CtrlStr = va_arg(ap, char *);
-
- strcpy(CtrlStrCopy, CtrlStr);
-
- /* Using base address of parameters we access other parameters addr: */
- /* Note that we (for sure!) samples data beyond the current function */
- /* frame, but we access only these set address only by demand. */
- for (i = 1; i <= MAX_PARAM; i++)
- Parameters[i-1] = va_arg(ap, int *);
-
- va_end(ap);
- #else /* Using stdarg.h */
- int GAGetArgs(int argc, ...)
- {
- va_list ap;
- int i, Error = FALSE, ParamCount = 0,
- *Parameters[MAX_PARAM]; /* Save here parameter addresses. */
- char **argv, *CtrlStr, *Option, CtrlStrCopy[CTRL_STR_MAX_LEN];
-
- va_start(ap, argc);
-
- argv = va_arg(ap, char **);
- CtrlStr = va_arg(ap, char *);
-
- strcpy(CtrlStrCopy, CtrlStr);
-
- /* Using base address of parameters we access other parameters addr: */
- /* Note that we (for sure!) samples data beyond the current function */
- /* frame, but we access only these set address only by demand. */
- for (i = 1; i <= MAX_PARAM; i++)
- Parameters[i - 1] = va_arg(ap, int *);
-
- va_end(ap);
- #endif /* USE_VARARG */
-
- --argc; argv++; /* Skip the program name (first in argv/c list). */
- while (argc >= 0) {
- if (!GAOptionExists(argc, argv))
- break; /* The loop. */
- argc--;
- Option = *argv++;
- if ((Error = GAUpdateParameters(Parameters, &ParamCount, Option,
- CtrlStrCopy, CtrlStr, &argc, &argv)) != FALSE)
- return Error;
- }
- /* Check for results and update trail of command line: */
- return GATestAllSatis(CtrlStrCopy, CtrlStr, &argc, &argv, Parameters,
- &ParamCount);
- }
-
- /*****************************************************************************
- * DESCRIPTION: *
- * Routine to search for unsatisfied flags - simply scan the list for !- *
- * sequences. Before this scan, this routine updates the rest of the command *
- * line into the last two parameters if it is requested by the CtrlStr *
- * (when last item in CtrlStr is NOT an option). *
- * Returns ARG_OK if all satisfied, CMD_ERR_AllSatis error else. *
- * *
- * PARAMETERS: *
- * CtrlStrCopy: A fresh, unmodified copy of given control string. *
- * CtrlStr: A bashed, marked with specified option copy of the *
- * control string. *
- * argc, argv: What is left of the command line, if anything. *
- * Parameters: Where rest of command line is going to be hooked to. *
- * ParamCount: Index into Parameters where to hook left overs. *
- * *
- * RETURN VALUE: *
- * int: TRUE if command line was valid, FALSE otherwise. *
- *****************************************************************************/
- static int GATestAllSatis(char *CtrlStrCopy,
- char *CtrlStr,
- int *argc,
- char ***argv,
- int *Parameters[MAX_PARAM],
- int *ParamCount)
- {
- int i;
- static char
- *LocalToken = NULL;
-
- /* If LocalToken is not initialized - do it now. Note that this string */
- /* should be writable as well so we can not assign it directly. */
- if (LocalToken == NULL) {
- LocalToken = (char *) IritMalloc(3);
- strcpy(LocalToken, "-?");
- }
-
- /* Check is last item is an option. If not then copy rest of command */
- /* line into it as 1. NumOfprm, 2. pointer to block of pointers. */
- for (i = (int) strlen(CtrlStr) - 1; i > 0 && !ISSPACE(CtrlStr[i]); i--);
- if (!ISCTRLCHAR(CtrlStr[i + 2])) {
- GASetParamCount(CtrlStr, i, ParamCount); /* Point in correct prm.. */
- *Parameters[(*ParamCount)++] = *argc;
- GAByteCopy((char *) Parameters[(*ParamCount)++], (char *) argv,
- sizeof(char *));
- }
-
- i = 0;
- while (++i < (int) strlen(CtrlStrCopy))
- if ((CtrlStrCopy[i] == '-') && (CtrlStrCopy[i-1] == '!')) {
- GAErrorToken = LocalToken;
- LocalToken[1] = CtrlStrCopy[i-2]; /* Set the correct flag. */
- return CMD_ERR_AllSatis;
- }
-
- return ARG_OK;
- }
-
- /*****************************************************************************
- * DESCRIPTION: *
- * Routine to update the parameters according to the given Option. *
- * *
- * PARAMETERS: *
- * Parameters: Where new option should update the variables. *
- * ParamCount: Index into Parameters where to update using new option. *
- * Option: New command line option. *
- * CtrlStrCopy: A fresh, unmodified copy of given control string. *
- * CtrlStr: A bashed, marked with specified option copy of the *
- * argc, argv: Current command line state. *
- * *
- * RETURN VALUE: *
- * int: Return code based on success (ARG_OK), or failure. *
- *****************************************************************************/
- static int GAUpdateParameters(int *Parameters[],
- int *ParamCount,
- char *Option,
- char *CtrlStrCopy,
- char *CtrlStr,
- int *argc,
- char ***argv)
- {
- int i,
- BooleanTrue = Option[2] != '-';
-
- if (Option[0] != '-') {
- GAErrorToken = Option;
- return CMD_ERR_NotAnOpt;
- }
- i = 0; /* Scan the CtrlStrCopy for that option: */
- while (i + 2 < (int) strlen(CtrlStrCopy)) {
- if ((CtrlStrCopy[i] == Option[1]) && (ISCTRLCHAR(CtrlStrCopy[i + 1]))
- && (CtrlStrCopy[i+2] == '-')) {
- /* We found that option! */
- break;
- }
- i++;
- }
- if (i + 2 >= (int) strlen(CtrlStrCopy)) {
- GAErrorToken = Option;
- return CMD_ERR_NoSuchOpt;
- }
-
- /* If we are here, then we found that option in CtrlStr - Strip it off: */
- CtrlStrCopy[i] = CtrlStrCopy[i + 1] = CtrlStrCopy[i + 2] = (char) ' ';
- GASetParamCount(CtrlStr, i, ParamCount);/*Set it to point in correct prm.*/
- i += 3;
- /* Set Boolean flag for that option. */
- *Parameters[(*ParamCount)++] = BooleanTrue;
- if (ISSPACE(CtrlStrCopy[i]))
- return ARG_OK; /* Only a Boolean flag is needed. */
-
- /* Skip the text between the Boolean option and data follows: */
- while (!ISCTRLCHAR(CtrlStrCopy[i]))
- i++;
- /* Get the parameters and return the appropriete return code: */
- return GAGetParmeters(Parameters, ParamCount, &CtrlStrCopy[i],
- Option, argc, argv);
- }
-
- /*****************************************************************************
- * DESCRIPTION: *
- * Routine to get parameters from command line argc/v according to the *
- * prescribed CtrlStr. *
- * *
- * PARAMETERS: *
- * Parameters: Where new option should update the variables. *
- * ParamCount: Index into Parameters where to update using new option. *
- * CtrlStrCopy: A fresh, unmodified copy of given control string. *
- * Option: New command line option. *
- * argc, argv: Current command line state. *
- * *
- * RETURN VALUE: *
- * int: Return code based on success (ARG_OK), or failure. *
- *****************************************************************************/
- static int GAGetParmeters(int *Parameters[],
- int *ParamCount,
- char *CtrlStrCopy,
- char *Option,
- int *argc,
- char ***argv)
- {
- int ScanRes, IData,
- i = 0;
- long LData;
- float FData;
- double DData;
-
- while (!(ISSPACE(CtrlStrCopy[i]))) {
- if (*argc == 0) {
- GAErrorToken = Option;
- return CMD_ERR_NumRead;
- }
-
- switch (CtrlStrCopy[i+1]) {
- case 'd': /* Get signed integers. */
- if ((ScanRes = sscanf(*((*argv)++), "%d", &IData)) == 1)
- *((int *) Parameters[(*ParamCount)++]) = IData;
- break;
- case 'u': /* Get unsigned integers. */
- if ((ScanRes = sscanf(*((*argv)++), "%u", &IData)) == 1)
- *((int *) Parameters[(*ParamCount)++]) = IData;
- break;
- case 'x': /* Get hex integers. */
- if ((ScanRes = sscanf(*((*argv)++), "%x", &IData)) == 1)
- *((int *) Parameters[(*ParamCount)++]) = IData;
- break;
- case 'o': /* Get octal integers. */
- if ((ScanRes = sscanf(*((*argv)++), "%o", &IData)) == 1)
- *((int *) Parameters[(*ParamCount)++]) = IData;
- break;
- case 'D': /* Get signed integers. */
- if ((ScanRes = sscanf(*((*argv)++), "%ld", &LData)) == 1)
- *((int *) Parameters[(*ParamCount)++]) = LData;
- break;
- case 'U': /* Get unsigned integers. */
- if ((ScanRes = sscanf(*((*argv)++), "%lu", &LData)) == 1)
- *((int *) Parameters[(*ParamCount)++]) = LData;
- break;
- case 'X': /* Get hex integers. */
- if ((ScanRes = sscanf(*((*argv)++), "%lx", &LData)) == 1)
- *((int *) Parameters[(*ParamCount)++]) = LData;
- break;
- case 'O': /* Get octal integers. */
- if ((ScanRes = sscanf(*((*argv)++), "%lo", &LData)) == 1)
- *((int *) Parameters[(*ParamCount)++]) = LData;
- break;
- case 'f': /* Get float number. */
- if ((ScanRes = sscanf(*((*argv)++), "%f", &FData)) == 1)
- *((float *) Parameters[(*ParamCount)++]) = FData;
- break;
- case 'F': /* Get double float number. */
- if ((ScanRes = sscanf(*((*argv)++), "%lf", &DData)) == 1)
- *((double *) Parameters[(*ParamCount)++]) = DData;
- break;
- case 's': /* It as a string. */
- ScanRes = 1; /* Allways O.K. */
- GAByteCopy((char *) Parameters[(*ParamCount)++],
- (char *) ((*argv)++), sizeof(char *));
- break;
- case '*': /* Get few parameters into one: */
- ScanRes = GAGetMultiParmeters(Parameters, ParamCount,
- &CtrlStrCopy[i], argc, argv);
- if ((ScanRes == 0) && (CtrlStrCopy[i] == '!')) {
- GAErrorToken = Option;
- return CMD_ERR_WildEmpty;
- }
- break;
- default:
- ScanRes = 0; /* Make optimizer warning silent. */
- }
- /* If reading fails and this number is a must (!) then error: */
- if (ScanRes == 0) {
- if (CtrlStrCopy[i] == '!') {
- GAErrorToken = Option;
- return CMD_ERR_NumRead;
- }
- else {
- /* It is optional but it is not there - quit. */
- (*argv)--;
- while (!isspace(CtrlStrCopy[i++]));
- return ARG_OK;
- }
- }
- if (CtrlStrCopy[i+1] != '*') {
- (*argc)--; /* Everything is OK - update to next parameter: */
- i += 2; /* Skip to next parameter (if any). */
- }
- else
- i += 3; /* Skip the '*' also! */
- }
-
- return ARG_OK;
- }
-
- /*****************************************************************************
- * DESCRIPTION: *
- * Routine to get several parameters into one pointer such that the returned *
- * pointer actually points on a block of pointers on the parameters... *
- * For example *F means a pointer to pointers on double. *
- * Returns number of parameters actually being read. *
- * This routine assumes that all pointers (on any kind of scalar) has the *
- * same size (and the union below is totally ovelapped between dif. arrays). *
- * *
- * PARAMETERS: *
- * Parameters: Where new option should update the variables. *
- * ParamCount: Index into Parameters where to update using new option. *
- * CtrlStrCopy: A fresh, unmodified copy of given control string. *
- * argc, argv: Current command line state. *
- * *
- * RETURN VALUE: *
- * int: Number of parameters actually being read. *
- *****************************************************************************/
- static int GAGetMultiParmeters(int *Parameters[],
- int *ParamCount,
- char *CtrlStrCopy,
- int *argc,
- char ***argv)
- {
- int ScanRes, **Pmain, **Ptemp,
- i = 0,
- NumOfPrm = 0;
- union TmpArray { /* Save here the temporary data before copying it to */
- int *IntArray[MAX_PARAM]; /* the returned pointer block. */
- long *LngArray[MAX_PARAM];
- float *FltArray[MAX_PARAM];
- double *DblArray[MAX_PARAM];
- char *ChrArray[MAX_PARAM];
- } TmpArray;
-
- do {
- switch (CtrlStrCopy[2]) { /* CtrlStr == '!*?' or '%*?' where ? is. */
- case 'd': /* Format to read the parameters: */
- TmpArray.IntArray[NumOfPrm] =
- (int *) IritMalloc(sizeof(int));
- ScanRes = sscanf(*((*argv)++), "%d",
- (int *) TmpArray.IntArray[NumOfPrm++]);
- break;
- case 'u':
- TmpArray.IntArray[NumOfPrm] =
- (int *) IritMalloc(sizeof(int));
- ScanRes = sscanf(*((*argv)++), "%u",
- (unsigned int *) TmpArray.IntArray[NumOfPrm++]);
- break;
- case 'o':
- TmpArray.IntArray[NumOfPrm] =
- (int *) IritMalloc(sizeof(int));
- ScanRes = sscanf(*((*argv)++), "%o",
- (int *) TmpArray.IntArray[NumOfPrm++]);
- break;
- case 'x':
- TmpArray.IntArray[NumOfPrm] =
- (int *) IritMalloc(sizeof(int));
- ScanRes = sscanf(*((*argv)++), "%x",
- (int *) TmpArray.IntArray[NumOfPrm++]);
- break;
- case 'D':
- TmpArray.LngArray[NumOfPrm] =
- (long *) IritMalloc(sizeof(long));
- ScanRes = sscanf(*((*argv)++), "%ld",
- (long *) TmpArray.LngArray[NumOfPrm++]);
- break;
- case 'U':
- TmpArray.LngArray[NumOfPrm] =
- (long *) IritMalloc(sizeof(long));
- ScanRes = sscanf(*((*argv)++), "%lu",
- (unsigned long *) TmpArray.LngArray[NumOfPrm++]);
- break;
- case 'O':
- TmpArray.LngArray[NumOfPrm] =
- (long *) IritMalloc(sizeof(long));
- ScanRes = sscanf(*((*argv)++), "%lo",
- (long *) TmpArray.LngArray[NumOfPrm++]);
- break;
- case 'X':
- TmpArray.LngArray[NumOfPrm] =
- (long *) IritMalloc(sizeof(long));
- ScanRes = sscanf(*((*argv)++), "%lx",
- (long *) TmpArray.LngArray[NumOfPrm++]);
- break;
- case 'f':
- TmpArray.FltArray[NumOfPrm] =
- (float *) IritMalloc(sizeof(float));
- ScanRes = sscanf(*((*argv)++), "%f",
- (float *) TmpArray.FltArray[NumOfPrm++]);
- break;
- case 'F':
- TmpArray.DblArray[NumOfPrm] =
- (double *) IritMalloc(sizeof(double));
- ScanRes = sscanf(*((*argv)++), "%lf",
- (double *) TmpArray.DblArray[NumOfPrm++]);
- break;
- case 's':
- while ((*argc) && ((**argv)[0] != '-')) {
- TmpArray.ChrArray[NumOfPrm++] = *((*argv)++);
- (*argc)--;
- }
- ScanRes = 0; /* Force quit from do - loop. */
- NumOfPrm++; /* Updated again immediately after loop! */
- (*argv)++; /* "" */
- break;
- default:
- ScanRes = 0; /* Make optimizer warning silent. */
- }
- (*argc)--;
- }
- while (ScanRes == 1); /* Exactly one parameter was read. */
- (*argv)--;
- NumOfPrm--;
- (*argc)++;
-
- /* Now allocate the block with the exact size, and set it: */
- Ptemp = Pmain = (int **) IritMalloc((unsigned) (NumOfPrm+1) * sizeof(int *));
- /* And here we use the assumption that all pointers are the same: */
- for (i = 0; i < NumOfPrm; i++)
- *Ptemp++ = TmpArray.IntArray[i];
- *Ptemp = NULL; /* Close the block with NULL pointer. */
-
- /* That it save the number of parameters read as first parameter to */
- /* return and the pointer to the block as second, and return: */
- *Parameters[(*ParamCount)++] = NumOfPrm;
- GAByteCopy((char *) Parameters[(*ParamCount)++], (char *) &Pmain,
- sizeof(char *));
- return NumOfPrm;
- }
-
- /*****************************************************************************
- * DESCRIPTION: *
- * Routine to scan the CtrlStr, upto Max and count the number of parameters *
- * to that point as, *
- * 1. Each option is counted as one parameter - Boolean variable (int) *
- * 2. Within an option, each %? or !? is counted once - pointer to something. *
- * 3. Within an option, %*? or !*? is counted twice - one for item count *
- * and one for pointer to block of pointers. *
- * ALL variables are passed by address and we assume pointers (addresses) *
- * are all the same fixed size. *
- * *
- * PARAMETERS: *
- * CtrlStr: A fresh, unmodified copy of given control string. *
- * Max: Maximum number of options to scan. *
- * ParamCOunt: Where resulting count is saved. *
- * *
- * RETURN VALUE: *
- * void *
- *****************************************************************************/
- static void GASetParamCount(char *CtrlStr, int Max, int *ParamCount)
- {
- int i;
-
- *ParamCount = 0;
- for (i = 0; i < Max; i++)
- if (ISCTRLCHAR(CtrlStr[i])) {
- if (CtrlStr[i+1] == '*')
- *ParamCount += 2;
- else
- (*ParamCount)++;
- }
- }
-
- /*****************************************************************************
- * DESCRIPTION: *
- * Routine to copy exactly n bytes from Src to Dst. *
- * *
- * PARAMETERS: *
- * Dst: Destination address. *
- * Src: Source address. *
- * n: Number of bytes to copy. *
- * *
- * RETURN VALUE: *
- * void *
- *****************************************************************************/
- static void GAByteCopy(char *Dst, char *Src, unsigned n)
- {
- while (n--) *(Dst++) = *(Src++);
- }
-
- /*****************************************************************************
- * DESCRIPTION: *
- * Routine to verify if more options (i.e. first char == '-') exist in the *
- * given command line list list argc, argv (excludes just '-' which signals *
- * file stdin, though). *
- * *
- * PARAMETERS: *
- * argc, argv: Current command line state. *
- * *
- * RETURN VALUE: *
- * int: TRUE if more options exists, FALSE otherwise. *
- *****************************************************************************/
- static int GAOptionExists(int argc, char **argv)
- {
- while (argc--) {
- if ((*argv)[0] == '-' && (*argv)[1] != 0)
- return TRUE;
- argv++;
- }
- return FALSE;
- }
-
- /*****************************************************************************
- * DESCRIPTION: M
- * Routine to print a description of an error to stderr, for this module: M
- * *
- * PARAMETERS: M
- * Error: Error type as returned by GAGetArgs. M
- * *
- * RETURN VALUE: M
- * void M
- * *
- * KEYWORDS: M
- * GAPrintErrMsg, command line arguments M
- *****************************************************************************/
- void GAPrintErrMsg(int Error)
- {
- fprintf(stderr, "Error in command line parsing - ");
- switch (Error) {
- case 0:;
- fprintf(stderr, "Undefined error");
- break;
- case CMD_ERR_NotAnOpt:
- fprintf(stderr, "None option found");
- break;
- case CMD_ERR_NoSuchOpt:
- fprintf(stderr, "Undefined option found");
- break;
- case CMD_ERR_WildEmpty:
- fprintf(stderr, "Empty input for '!*?' seq.");
- break;
- case CMD_ERR_NumRead:
- fprintf(stderr, "Failed on reading number");
- break;
- case CMD_ERR_AllSatis:
- fprintf(stderr, "Fail to satisfy");
- break;
- }
- fprintf(stderr, " - '%s'.\n", GAErrorToken);
- }
-
- /*****************************************************************************
- * DESCRIPTION: M
- * Routine to print the correct format of command line allowed, to stderr. M
- * For example, for the following control string, M
- * "Example1 i%-OneInteger!d s%-Strings!*s j%- k!-Float!f Files" V
- * This routine will print M
- * Example1 [-i OneIngeter] [-s Strings...] [-j] -k Float Files... V
- * *
- * PARAMETERS: M
- * CtrlStr: Defining the types/options to expect in the command line. M
- * *
- * RETURN VALUE: M
- * void M
- * *
- * KEYWORDS: M
- * GAPrintHowTo, command line arguments M
- *****************************************************************************/
- void GAPrintHowTo(char *CtrlStr)
- {
- int SpaceFlag,
- i = 0;
-
- fprintf(stderr, "Usage: ");
- /* Print program name - first word in ctrl. str. (optional): */
- while (!(ISSPACE(CtrlStr[i])) && (!ISCTRLCHAR(CtrlStr[i+1])))
- fprintf(stderr, "%c", CtrlStr[i++]);
-
- while (i < (int) strlen(CtrlStr)) {
- while ((ISSPACE(CtrlStr[i])) && (i < (int) strlen(CtrlStr))) i++;
- switch (CtrlStr[i+1]) {
- case '%':
- fprintf(stderr, " [-%c", CtrlStr[i++]);
- i += 2; /* Skip the '%-' or '!- after the char! */
- SpaceFlag = TRUE;
- while (!ISCTRLCHAR(CtrlStr[i]) &&
- (i < (int) strlen(CtrlStr)) &&
- (!ISSPACE(CtrlStr[i])))
- if (SpaceFlag) {
- if (CtrlStr[i++] == SPACE_CHAR)
- fprintf(stderr, " ");
- else
- fprintf(stderr, " %c", CtrlStr[i-1]);
- SpaceFlag = FALSE;
- }
- else if (CtrlStr[i++] == SPACE_CHAR)
- fprintf(stderr, " ");
- else
- fprintf(stderr, "%c", CtrlStr[i-1]);
- while (!ISSPACE(CtrlStr[i]) && (i < (int) strlen(CtrlStr))) {
- if (CtrlStr[i] == '*')
- fprintf(stderr, "...");
- i++; /* Skip the rest of it. */
- }
- fprintf(stderr, "]");
- break;
- case '!':
- fprintf(stderr, " -%c", CtrlStr[i++]);
- i += 2; /* Skip the '%-' or '!- after the char! */
- SpaceFlag = TRUE;
- while (!ISCTRLCHAR(CtrlStr[i]) &&
- (i < (int) strlen(CtrlStr)) &&
- (!ISSPACE(CtrlStr[i])))
- if (SpaceFlag) {
- if (CtrlStr[i++] == SPACE_CHAR)
- fprintf(stderr, " ");
- else
- fprintf(stderr, " %c", CtrlStr[i-1]);
- SpaceFlag = FALSE;
- }
- else if (CtrlStr[i++] == SPACE_CHAR)
- fprintf(stderr, " ");
- else
- fprintf(stderr, "%c", CtrlStr[i-1]);
- while (!ISSPACE(CtrlStr[i]) && (i < (int) strlen(CtrlStr))) {
- if (CtrlStr[i] == '*')
- fprintf(stderr, "...");
- i++; /* Skip the rest of it. */
- }
- break;
- default: /* Not checked, but must be last one! */
- fprintf(stderr, " ");
- while (!ISSPACE(CtrlStr[i]) && (i < (int) strlen(CtrlStr)) &&
- !ISCTRLCHAR(CtrlStr[i]))
- fprintf(stderr, "%c", CtrlStr[i++]);
- fprintf(stderr, "\n");
- return;
- }
- }
- fprintf(stderr, "\n");
- }
-