Changeset 88001dd

Timestamp:

Aug 24, 2023, 11:39:08 AM (15 months ago)

Author:

Peter A. Buhr <pabuhr@…>

Branches:

master

Children:

aa25216

Parents:

5ad2c6c7

Message:

first attempt reading strings in chunks using C strings

Location:

libcfa/src/containers

Files:

• string.cfa (modified) (2 diffs)
• string.hfa (modified) (2 diffs)

libcfa/src/containers/string.cfa

@@ -10 +10 @@
 // Created On       : Fri Sep 03 11:00:00 2021
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Sun Aug 13 22:50:08 2023
-// Update Count     : 7
+// Last Modified On : Thu Aug 24 11:27:57 2023
+// Update Count     : 89
 //
 
@@ -118 +118 @@
 }
 
+void getline( ifstream & in, string & str, const char delimit = '\n' ) {
+        // .---------------,
+        // | | | | |...|0|0| check and guard
+        // `---------------'
+        enum { gwd = 256 + 2, wd = gwd - 1 };                           // guarded and unguarded width
+        char cstr[gwd];                                                                         // read in chunks
+        bool cont = false;;
+
+        cstr[wd] = '\0';                                                                        // guard null terminate string
+        try {
+                in | getline( wdi( wd, cstr ), delimit );               // must have room for string terminator
+                if ( eof( in  ) ) return;                                               // do not change argument
+        } catch( cstring_length * ) {
+                cont = true;                                                                    // continue not allowed
+        } finally {
+                str = cstr;                                                                             // ok to initialize string
+        } // try
+        for ( ; cont; )  {                                                                      // overflow read ?
+                cont = false;
+                try {
+                        in | getline( wdi( wd, cstr ), delimit );       // must have room for string terminator
+                        if ( eof( in  ) ) return;
+                } catch( cstring_length * ) {
+                        cont = true;                                                            // continue not allowed
+                } finally {
+                        str += cstr;                                                            // build string chunk at a time
+                } // try
+        } // for
+}
+
 ////////////////////////////////////////////////////////
 // Slicing

libcfa/src/containers/string.hfa

@@ -10 +10 @@
 // Created On       : Fri Sep 03 11:00:00 2021
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Sun Aug 13 22:46:46 2023
-// Update Count     : 4
+// Last Modified On : Wed Aug 23 11:16:14 2023
+// Update Count     : 6
 //
 
@@ -57 +57 @@
 ifstream & ?|?(ifstream & in, string & s);
 void ?|?( ifstream & in, string & this );
+void getline( ifstream & in, string & this, const char delimit = '\n' );
 
 // Concatenation