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-rw-r--r--sid/sidplay-libs-2.1.0/libsidutils/src/ini/list.i314
1 files changed, 314 insertions, 0 deletions
diff --git a/sid/sidplay-libs-2.1.0/libsidutils/src/ini/list.i b/sid/sidplay-libs-2.1.0/libsidutils/src/ini/list.i
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+++ b/sid/sidplay-libs-2.1.0/libsidutils/src/ini/list.i
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+/***************************************************************************
+ list.i - Adds list support to ini files
+
+ -------------------
+ begin : Fri Apr 21 2000
+ copyright : (C) 2000 by Simon White
+ email : s_a_white@email.com
+ ***************************************************************************/
+
+/***************************************************************************
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ ***************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include "list.h"
+
+#ifdef INI_ADD_LIST_SUPPORT
+
+/********************************************************************************************************************
+ * Function : ini_listEval
+ * Parameters : ini - pointer to ini file database.
+ * Returns : -1 for Error or the numbers of list items found
+ * Globals Used :
+ * Globals Modified :
+ * Description : Uses the currently specified delimiters to calculate the number of eliments in a list
+ ********************************************************************************************************************
+ * Rev | Date | By | Comment
+ * ----------------------------------------------------------------------------------------------------------------
+ ********************************************************************************************************************/
+int __ini_listEval (ini_t *ini)
+{
+ int length, count, i, ret;
+ int ldelim;
+ char ch;
+
+ // Remove old list
+ if (ini->list)
+ {
+ free (ini->list);
+ ini->list = '\0';
+ }
+
+ // Re-evaluate with new settings
+ length = ini->selected->selected->length;
+ if (length < 0)
+ return -1;
+ if (!length)
+ {
+ ini->listIndex = '\0';
+ ini->listLength = 0;
+ if (ini->selected->selected == &ini->tmpKey)
+ return -1; // Can't read tmpKey
+ return 0;
+ }
+
+ // See if there are any chars which can be used to split the string into sub ones
+ if (!ini->listDelims)
+ return -1;
+ ldelim = (int) strlen (ini->listDelims);
+
+ // Buffer string for faster access
+ ini->list = (char *) malloc (length + 1);
+ if (!ini->list)
+ return -1;
+
+ { // Backup up delims to avoid causing problems with readString
+ char *delims = ini->listDelims;
+ ini->listDelims = NULL;
+ ret = ini_readString ((ini_fd_t) ini, ini->list, length + 1);
+ ini->listDelims = delims;
+ if (ret < 0)
+ return -1;
+ }
+
+ // Process buffer string to find number of sub strings
+ {
+ char lastch = '\0';
+ count = 1;
+ while (length)
+ {
+ length--;
+ ch = ini->list[length];
+ for (i = 0; i < ldelim; i++)
+ {
+ if ((char) ch == ini->listDelims[i])
+ { // Prevent lots of NULL strings on multiple
+ // whitespace
+ if (lastch == '\0')
+ {
+ if (isspace (ch))
+ {
+ ch = '\0';
+ break;
+ }
+ }
+
+ // Seperate strings
+ ini->list[length] = (ch = '\0');
+ count++;
+ break;
+ }
+ }
+ lastch = ch;
+ }
+ }
+
+ ini->listLength = count;
+ ini->listIndexPtr = ini->list;
+ ini->listIndex = 0;
+ return count;
+}
+
+
+/********************************************************************************************************************
+ * Function : __ini_listRead
+ * Parameters : ini - pointer to ini file database.
+ * Returns : NULL for error, string point otherwise
+ * Globals Used :
+ * Globals Modified :
+ * Description : Reads the indexed parameter from the list and auto
+ * : increments
+ ********************************************************************************************************************
+ * Rev | Date | By | Comment
+ * ----------------------------------------------------------------------------------------------------------------
+ ********************************************************************************************************************/
+char *__ini_listRead (ini_t *ini)
+{
+ char *p;
+
+ // we must read an element from the list
+ // Rev 1.2 Changed order of these two ifs as test was performed
+ // sometimes before anything was read
+ if (!ini->list)
+ {
+ if (__ini_listEval (ini) < 0)
+ return 0;
+ }
+
+ // Check to see if we are trying to get a value beyond the end of the list
+ if (ini->listIndex >= ini->listLength)
+ return 0;
+ p = ini->listIndexPtr;
+ // Auto increment pointers to next index
+ ini->listIndexPtr += (strlen (ini->listIndexPtr) + 1);
+ ini->listIndex++;
+ return p;
+}
+
+
+/********************************************************************************************************************
+ * Function : ini_listLength
+ * Parameters : ini - pointer to ini file database. heading - heading name. key - key name.
+ * Returns : -1 for Error or the numbers of list items found
+ * Globals Used :
+ * Globals Modified :
+ * Description : Uses the currently specified delimiters to calculate the number of eliments in a list
+ ********************************************************************************************************************
+ * Rev | Date | By | Comment
+ * ----------------------------------------------------------------------------------------------------------------
+ ********************************************************************************************************************/
+int INI_LINKAGE ini_listLength (ini_fd_t fd)
+{
+ ini_t *ini = (ini_t *) fd;
+ struct key_tag *_key;
+
+ // Check to make sure a section/key has
+ // been asked for by the user
+ if (!ini->selected)
+ return -1;
+ _key = ini->selected->selected;
+ if (!_key)
+ return -1;
+
+ // Check to see if we have moved to a new key
+ if (!ini->list)
+ return __ini_listEval (ini);
+
+ return ini->listLength;
+}
+
+
+/********************************************************************************************************************
+ * Function : ini_listDelims
+ * Parameters : ini - pointer to ini file database. delims - string of delimitor chars
+ * Returns : -1 for Error or 0 for success
+ * Globals Used :
+ * Globals Modified :
+ * Description : Sets the delimiters used for list accessing, (default delim is NULL)
+ ********************************************************************************************************************
+ * Rev | Date | By | Comment
+ * ----------------------------------------------------------------------------------------------------------------
+ ********************************************************************************************************************/
+int INI_LINKAGE ini_listDelims (ini_fd_t fd, char *delims)
+{
+ ini_t *ini = (ini_t *) fd;
+ if (ini->listDelims)
+ free (ini->listDelims);
+ ini->listDelims = NULL;
+
+ // Make sure we have something to copy
+ if (delims)
+ {
+ if (*delims)
+ { // Store delims for later use
+ ini->listDelims = (char *) malloc (strlen (delims) + 1);
+ if (!ini->listDelims)
+ return -1;
+ strcpy (ini->listDelims, delims);
+ }
+ }
+
+ // List will need recalculating at some point
+ if (ini->list)
+ {
+ free (ini->list);
+ ini->list = NULL;
+ }
+ return 0;
+}
+
+
+/********************************************************************************************************************
+ * Function : ini_listIndex
+ * Parameters : ini - pointer to ini file database. delims - string of delimitor chars
+ * Returns :
+ * Globals Used :
+ * Globals Modified :
+ * Description : Sets the index that the next call to any of the read function will obtain (default 0)
+ ********************************************************************************************************************
+ * Rev | Date | By | Comment
+ * ----------------------------------------------------------------------------------------------------------------
+ ********************************************************************************************************************/
+int INI_LINKAGE ini_listIndex (ini_fd_t fd, unsigned long index)
+{
+ ini_t *ini = (ini_t *) fd;
+ unsigned int count;
+ char *p;
+
+ // Check to make sure a section/key has
+ // been asked for by the user
+ if (!ini->selected)
+ return -1;
+ if (!ini->selected->selected)
+ return -1;
+
+ // Pull in new list
+ if (!ini->list)
+ {
+ if (__ini_listEval (ini) < 0)
+ return -1;
+ }
+
+ // Now scroll through to required index
+ if (!ini->listLength)
+ return -1;
+ if (index == ini->listIndex)
+ return 0;
+
+ if (index > ini->listIndex)
+ { // Continue search from the from current position
+ count = ini->listIndex;
+ p = ini->listIndexPtr;
+ }
+ else
+ { // Reset list and search from beginning
+ count = 0;
+ p = ini->list;
+ }
+
+ while (count != index)
+ {
+ count++;
+ if (count >= ini->listLength)
+ return -1;
+ // Jump to next sub string
+ p += (strlen (p) + 1);
+ }
+
+ ini->listIndex = count;
+ ini->listIndexPtr = p;
+ return 0;
+}
+
+
+/********************************************************************************************************************
+ * Function : __ini_listIndexLength
+ * Parameters : ini - pointer to ini file database
+ * Returns :
+ * Globals Used :
+ * Globals Modified :
+ * Description : Returns the length the indexed sub string
+ ********************************************************************************************************************
+ * Rev | Date | By | Comment
+ * ----------------------------------------------------------------------------------------------------------------
+ ********************************************************************************************************************/
+int __ini_listIndexLength (ini_t *ini)
+{
+ if (!ini->list)
+ { // No list yet. So try to get one
+ if (__ini_listEval (ini) < 0)
+ return -1;
+ }
+
+ // Now return length
+ return strlen (ini->listIndexPtr);
+}
+
+#endif // INI_ADD_LIST_SUPPORT
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