12 files changed, 273 insertions, 7 deletions
diff --git a/2.3-1/src/c/string/convstr/gconvstrs.c b/2.3-1/src/c/string/convstr/gconvstrs.c
index d4174965..3db7663e 100644
--- a/2.3-1/src/c/string/convstr/gconvstrs.c
+++ b/2.3-1/src/c/string/convstr/gconvstrs.c
@@ -1,7 +1,20 @@
 #include <string.h>
 #include "convstr.h"
 
-int gconvstrs(int* in)
+void gconvstrs(char* in, int size,char* flag,int size2,char* out)
 {
-	return (toupper(in));
-}
-\ No newline at end of file
+	int i=0;//temp=0;
+	for(i=0;i<size;i++)
+	{
+		//temp= in[i];
+		if(flag[0]=='l' || flag[0]=='L')
+		{	//temp=temp + 32;
+			out[i]=tolower(in[i]);
+		}
+		else if(flag[0]=='u' || flag[0]=='U')
+		{
+			//temp=temp - 32;
+			out[i]=toupper(in[i]);
+		}
+	}
+}
diff --git a/2.3-1/src/c/string/includes/convstr.h b/2.3-1/src/c/string/includes/convstr.h
index 3a8e6e7b..0737c546 100644
--- a/2.3-1/src/c/string/includes/convstr.h
+++ b/2.3-1/src/c/string/includes/convstr.h
@@ -5,7 +5,7 @@
  you should have received as part of this distribution.  The terms
  are also available at
  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
- Author: Siddhesh Wani
+ Author: Shamik Guha
  Organization: FOSSEE, IIT Bombay
  Email: toolbox@scilab.in
  */
@@ -17,7 +17,7 @@
  extern "C" {
  #endif
 
-int gconvstrs(int* in);
+void gconvstrs(char* in, int size,char* flag,int size2,char* out);
 
  #ifdef  __cplusplus 
  } /* extern "C" */
diff --git a/2.3-1/src/c/string/includes/strrchr.h b/2.3-1/src/c/string/includes/strrchr.h
new file mode 100644
index 00000000..d06460be
--- /dev/null
+++ b/2.3-1/src/c/string/includes/strrchr.h
@@ -0,0 +1,26 @@
+ /* Copyright (C) 2016 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Shamik Guha
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+#ifndef __STRRCHR_H__
+#define __STRRCHR_H__
+
+
+ #ifdef  __cplusplus
+ extern "C" {
+ #endif
+
+void gstrrchr(char* str,int size,char* key,int size2,char* out);
+
+ #ifdef  __cplusplus 
+ } /* extern "C" */
+ #endif
+
+#endif /*__STRRCHR_H__*/
diff --git a/2.3-1/src/c/string/includes/strrev.h b/2.3-1/src/c/string/includes/strrev.h
new file mode 100644
index 00000000..c7e79570
--- /dev/null
+++ b/2.3-1/src/c/string/includes/strrev.h
@@ -0,0 +1,27 @@
+ /* Copyright (C) 2016 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Shamik Guha
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+#ifndef __STRREV_H__
+#define __STRREV_H__
+
+
+ #ifdef  __cplusplus
+ extern "C" {
+ #endif
+
+void gstrreva(char* str,int size,char* out);
+//void gstrrevs(char* in, int size,char* search, int size2, char* rep, int size3, ,char* out);
+
+ #ifdef  __cplusplus 
+ } /* extern "C" */
+ #endif
+
+#endif /*__STRREV_H__*/
diff --git a/2.3-1/src/c/string/includes/strsubst.h b/2.3-1/src/c/string/includes/strsubst.h
new file mode 100644
index 00000000..e9eba429
--- /dev/null
+++ b/2.3-1/src/c/string/includes/strsubst.h
@@ -0,0 +1,27 @@
+ /* Copyright (C) 2016 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Shamik Guha
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+#ifndef __STRSUBST_H__
+#define __STRSUBST_H__
+
+
+ #ifdef  __cplusplus
+ extern "C" {
+ #endif
+
+void gstrsubsta(char* str, int size, char* search, int size2, char* rep, int size3, char* flagmain,int size4, char* out);
+//void gstrsubsta(char* str, int size, char* search, int size2, char* rep, int size3, char* out,int size5);
+
+ #ifdef  __cplusplus 
+ } /* extern "C" */
+ #endif
+
+#endif /*__STRSUBST_H__*/
diff --git a/2.3-1/src/c/string/interfaces/int_convstr.h b/2.3-1/src/c/string/interfaces/int_convstr.h
index f565b858..fee3d373 100644
--- a/2.3-1/src/c/string/interfaces/int_convstr.h
+++ b/2.3-1/src/c/string/interfaces/int_convstr.h
@@ -5,7 +5,7 @@
  you should have received as part of this distribution.  The terms
  are also available at
  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
- Author: Siddhesh Wani
+ Author: Shamik Guha
  Organization: FOSSEE, IIT Bombay
  Email: toolbox@scilab.in
  */
@@ -16,7 +16,9 @@
  extern "C" {
  #endif
 
-#define g0constrg0(in, size)	gconstrs(in)
+#define g2g2convstrg2(in,size,flag,size2,out)	gconvstrs(in,size[0]*size[1],flag,size2[1],out)
+//#define g2g2convstrg0(in,size,type,typesize,out)	(type=='u': \
+			gconvstrs(in,size[0]*size[1],0,out)?gconvstrs(in,size[0]*size[1],1,out))
 
  #ifdef  __cplusplus
  } /* extern "C" */
diff --git a/2.3-1/src/c/string/interfaces/int_strrchr.h b/2.3-1/src/c/string/interfaces/int_strrchr.h
new file mode 100644
index 00000000..7ec94ebe
--- /dev/null
+++ b/2.3-1/src/c/string/interfaces/int_strrchr.h
@@ -0,0 +1,25 @@
+ /* Copyright (C) 2016 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Shamik Guha
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+#ifndef __INT_STRRCHR_H__
+#define __INT_STRRCHR_H__
+
+ #ifdef  __cplusplus
+ extern "C" {
+ #endif
+
+#define g2g2strrchrg2(str,size,key,size2,out)	gstrrchra(str,size[1],key,size2[1],out)
+
+ #ifdef  __cplusplus
+ } /* extern "C" */
+ #endif
+
+#endif /*__INT_STRRCHR_H__*/
diff --git a/2.3-1/src/c/string/interfaces/int_strrev.h b/2.3-1/src/c/string/interfaces/int_strrev.h
new file mode 100644
index 00000000..8429f6a1
--- /dev/null
+++ b/2.3-1/src/c/string/interfaces/int_strrev.h
@@ -0,0 +1,25 @@
+ /* Copyright (C) 2016 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Shamik Guha
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+#ifndef __INT_STRREV_H__
+#define __INT_STRREV_H__
+
+ #ifdef  __cplusplus
+ extern "C" {
+ #endif
+
+#define g2strrevg2(str,size,out)	gstrreva(str,size[1],out)
+
+ #ifdef  __cplusplus
+ } /* extern "C" */
+ #endif
+
+#endif /*__INT_STRREV_H__*/
diff --git a/2.3-1/src/c/string/interfaces/int_strsubst.h b/2.3-1/src/c/string/interfaces/int_strsubst.h
new file mode 100644
index 00000000..c8dd67a1
--- /dev/null
+++ b/2.3-1/src/c/string/interfaces/int_strsubst.h
@@ -0,0 +1,28 @@
+ /* Copyright (C) 2016 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Shamik Guha
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+#ifndef __INT_STRSUBST_H__
+#define __INT_STRSUBST_H__
+
+ #ifdef  __cplusplus
+ extern "C" {
+ #endif
+
+#define g2g2g2g2strsubstg2(str,size,search,size2,rep,size3,flagmain,size4,out)	gstrsubsta(str,size[1],search,size2[1],rep,size3[1],flagmain,size4[1],out)
+#define g2g2g2strsubstg2(in,size,search,size2,rep,size3,out)	gstrsubsta(in,size[1],search,size2[1],rep,size3[1],'s',size3[1],out)
+
+
+
+ #ifdef  __cplusplus
+ } /* extern "C" */
+ #endif
+
+#endif /*__INT_STRSUBST_H__*/
diff --git a/2.3-1/src/c/string/strrchr/gstrrchra.c b/2.3-1/src/c/string/strrchr/gstrrchra.c
new file mode 100644
index 00000000..460c1f2f
--- /dev/null
+++ b/2.3-1/src/c/string/strrchr/gstrrchra.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <string.h>
+#include "strrchr.h"
+
+void gstrrchra(char* str,int size,char* key,int size2,char* out)
+{
+    int i,j, k=0, pos2;
+   
+    for (i = 0;i<size;i++)
+    {
+        if (key[0] == str[i])
+        {
+            pos2 = i;
+        }
+    }
+	for(j=pos2;j<i;j++)
+	{
+		out[k]=str[j];
+		k++;
+	}
+}
diff --git a/2.3-1/src/c/string/strrev/gstrreva.c b/2.3-1/src/c/string/strrev/gstrreva.c
new file mode 100644
index 00000000..8ceb16ab
--- /dev/null
+++ b/2.3-1/src/c/string/strrev/gstrreva.c
@@ -0,0 +1,15 @@
+#include<stdio.h>
+#include "strrev.h"
+
+void gstrreva(char* str,int size,char* out)
+{
+    int i=-1,j=0;
+   
+    while(str[++i]!='\0');
+
+    while(i>=0)
+     out[j++] = str[--i];
+
+    out[j]='\0';
+  
+}
diff --git a/2.3-1/src/c/string/strsubst/gstrsubsta.c b/2.3-1/src/c/string/strsubst/gstrsubsta.c
new file mode 100644
index 00000000..69ebf3c5
--- /dev/null
+++ b/2.3-1/src/c/string/strsubst/gstrsubsta.c
@@ -0,0 +1,57 @@
+#include <stdio.h>
+#include <string.h>
+#include "strsubst.h"
+ 
+void gstrsubsta(char* str,int size, char* search, int size2, char* rep, int size3, char* flagmain, int size4, char* out)
+{
+        int i = 0, j = 0, flag = 0, start = 0;
+ 
+    //if(flagmain[0]!='r')
+    //{
+        while (str[i] != '\0') 
+	{
+                if (str[i] == search[j]) 
+		{
+                        if (!flag)
+                                start = i;
+                        j++;
+                        if (search[j] == '\0')
+                                break;
+                        flag = 1;
+                } 
+		else 
+		{
+                        flag = start = j = 0;
+                }
+                i++;
+        }
+
+        if (search[j] == '\0' && flag) 
+	{
+                for (i = 0; i < start; i++)
+                        out[i] = str[i];
+                /* rep string with another string */
+                for (j = 0; j < strlen(rep); j++) 
+		{
+                        out[i] = rep[j];
+                        i++;
+                }
+
+                /* copy remaining portion of the input string "str" */
+                for (j = start + strlen(search); j < strlen(str); j++) 
+		{
+                        out[i] = str[j];
+                        i++;
+                }
+
+                /* print the out string */
+                out[i] = '\0';
+                //printf("Output: %s\n", out);
+        } 
+	else 
+	{
+                printf("%s is not a searching of %s\n", search, str);
+        }
+ //   }
+
+}