diff -r 9f25df78925e -r 1b12cf799fee src/c2html.h
--- a/src/c2html.h	Thu Nov 10 18:44:48 2016 +0100
+++ b/src/c2html.h	Mon Apr 24 20:54:38 2023 +0200
@@ -31,90 +31,23 @@
 #define C2HTML_H
 
 #include <stdio.h>
+#include <cx/list.h>
 #include "highlighter.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
     
-#define VERSION_MAJOR   2
+#define VERSION_MAJOR   3
 #define VERSION_MINOR   0
 #define VERSION_DEVELOP 0 /* set this to zero for release version */
 
 /**
- * Reads a source file from the input buffer and writes at most
- * <code>maxlen</code> bytes of the formatted output to the output buffer.
- * 
- * The output buffer must either be large enough to hold <code>maxlen</code>
- * bytes or the write function must trigger an automatic extension of the
- * buffer.
- * 
- * The input is copied via an intermediate buffer to an internal buffer.
- * 
- * @param inputbuffer the input buffer
- * @param rfnc a read function operating for the input buffer
- * @param ibuf intermediate processing buffer
- * @param ibuflen length of intermediate processing buffer
- * @param outputbuffer the output buffer
- * @param wfnc a write function for the output buffer
- * @param maxlen the maximum amount bytes which will be written to the
- * output buffer
- * @param hltr the highlighter function
- * @param showln zero, if line numbers shall be omitted, nonzero otherwise
- * 
- * @return total amount of bytes written to the output buffer
- * 
- * @see c2html_plain_highlighter()
- * @see c2html_c_highlighter()
- * @see c2html_java_highlighter()
- */
-size_t c2html_formatn(void* inputbuffer, read_func rfnc,
-        char* ibuf, size_t ibuflen, void* outputbuffer, write_func wfnc,
-        size_t maxlen, c2html_highlighter_func hltr, int showln);
-    
-/**
- * Reads a source file from the input buffer and writes the formatted output
- * to an output buffer.
- * 
- * The output buffer must either be large enough to hold the formatted data
- * or the write function must trigger an automatic extension of the buffer.
+ * Writes the formatted source data to the output buffer.
  * 
- * The input is copied via an intermediate buffer to an internal buffer.
- * 
- * @param inputbuffer the input buffer
- * @param rfnc a read function operating for the input buffer
- * @param ibuf intermediate processing buffer
- * @param ibuflen length of intermediate processing buffer
- * @param outputbuffer the output buffer
- * @param wfnc a write function for the output buffer
- * @param hltr the highlighter function
- * @param showln zero, if line numbers shall be omitted, nonzero otherwise
- * 
- * @return total amount of bytes written to the output buffer
- * 
- * @see c2html_plain_highlighter()
- * @see c2html_c_highlighter()
- * @see c2html_java_highlighter()
- */
-size_t c2html_format(void* inputbuffer, read_func rfnc,
-        char* ibuf, size_t ibuflen, void* outputbuffer, write_func wfnc,
-        c2html_highlighter_func hltr, int showln);
-
-/**
- * Reads a source file from the specified input file stream and writes the
- * formatted output to an output buffer.
- * 
- * The output buffer must either be large enough to hold the formatted data
- * or the write function must trigger an automatic extension of the buffer.
- * 
- * The input is copied via an intermediate buffer to an internal buffer.
- * For files, the recommended intermediate buffer length is the file system
- * block size.
- * 
- * @param inputfile the input file stream
- * @param ibuf intermediate processing buffer
- * @param ibuflen length of intermediate processing buffer
- * @param outputbuffer the output buffer
+ * @param inputbuffer the source file data as string
+ * @param inputbuflen the length of the source file
+ * @param outbuf the output buffer
  * @param wfnc a write function for the output buffer
  * @param hltr the highlighter function
  * @param showln zero, if line numbers shall be omitted, nonzero otherwise
@@ -125,92 +58,32 @@
  * @see c2html_c_highlighter()
  * @see c2html_java_highlighter()
  */
-size_t c2html_fformat(FILE* inputfile, char *ibuf, size_t ibuflen,
-        void* outputbuffer, write_func wfnc,
-        c2html_highlighter_func hltr, int showln);
+size_t c2html_bformat(char const* inputbuffer, size_t inputbuflen,
+                      void* outbuf, cx_write_func wfnc,
+                      c2html_highlighter_func hltr, int showln);
 
 /**
- * Reads a source file from the specified input file stream and directly writes
- * the formatted output to the output file stream.
- * 
- * For files, the recommended intermediate buffer length is the file system
- * block size.
- * 
- * @param inputfile the input file stream
- * @param ibuf intermediate processing buffer
- * @param ibuflen length of intermediate processing buffer (recommended: 4 KB)
- * @param outputfile the output file stream
+ * Writes the formatted source data to the output buffer.
+ *
+ * This function takes a list of \c char* that point to the beginning of each
+ * line. These pointers may point directly into the source text and the strings
+ * do not need to be zero-terminated, but the line-breaks must be included.
+ *
+ * @param lines a list of pointers to the beginning of each line
+ * @param outbuf the output buffer
+ * @param wfnc a write function for the output buffer
  * @param hltr the highlighter function
  * @param showln zero, if line numbers shall be omitted, nonzero otherwise
- * 
+ *
+ * @return total amount of bytes written to the output buffer
+ *
  * @see c2html_plain_highlighter()
  * @see c2html_c_highlighter()
  * @see c2html_java_highlighter()
  */
-void c2html_fformatf(FILE *inputfile, char *ibuf, size_t ibuflen,
-        FILE* outputfile, c2html_highlighter_func hltr, int showln);
-
-
-/**
- * Writes at most <code>maxlen</code> bytes of formatted source data to the
- * output buffer.
- * 
- * @param inputbuffer the source file data as string
- * @param inputbuflen the length of the source file
- * @param outputbuffer the output buffer
- * @param wfnc a write function for the output buffer
- * @param maxlen the maximum amount bytes which will be written to the
- * output buffer
- * @param hltr the highlighter function
- * @param showln zero, if line numbers shall be omitted, nonzero otherwise
- * 
- * @return total amount of bytes written to the output buffer
- * 
- * @see c2html_plain_highlighter()
- * @see c2html_c_highlighter()
- * @see c2html_java_highlighter()
- */
-size_t c2html_bformatn(const char* inputbuffer, size_t inputbuflen,
-        void* outputbuffer, write_func wfnc,
-        size_t maxlen, c2html_highlighter_func hltr, int showln);
-    
-
-/**
- * Writes the formatted source data to the output buffer.
- * 
- * @param inputbuffer the source file data as string
- * @param inputbuflen the length of the source file
- * @param outputbuffer the output buffer
- * @param wfnc a write function for the output buffer
- * @param hltr the highlighter function
- * @param showln zero, if line numbers shall be omitted, nonzero otherwise
- * 
- * @return total amount of bytes written to the output buffer
- * 
- * @see c2html_plain_highlighter()
- * @see c2html_c_highlighter()
- * @see c2html_java_highlighter()
- */
-size_t c2html_bformat(const char* inputbuffer, size_t inputbuflen,
-        void* outputbuffer, write_func wfnc,
-        c2html_highlighter_func hltr, int showln);
-
-
-/**
- * Writes the formatted source data directly to the specified file stream.
- * 
- * @param inputbuffer the source file data as string
- * @param inputbuflen the length of the source file
- * @param outputfile the output file stream
- * @param hltr the highlighter function
- * @param showln zero, if line numbers shall be omitted, nonzero otherwise
- * 
- * @see c2html_plain_highlighter()
- * @see c2html_c_highlighter()
- * @see c2html_java_highlighter()
- */
-void c2html_bformatf(const char* inputbuffer, size_t inputbuflen,
-        FILE* outputfile, c2html_highlighter_func hltr, int showln);
+size_t c2html_format(CxList const* lines,
+                     void* outbuf, cx_write_func wfnc,
+                     c2html_highlighter_func hltr, int showln);
 
 #ifdef __cplusplus
 }