enhanced cut

qse/include/qse/cmn/Makefile.am

@@ -3,7 +3,7 @@ pkgincludedir = $(includedir)/qse/cmn
 pkginclude_HEADERS = \
 	mem.h chr.h str.h lda.h map.h \
 	rex.h sll.h dll.h opt.h tio.h \
-	fio.h pio.h sio.h time.h main.h stdio.h
+	fio.h pio.h sio.h time.h misc.h main.h stdio.h 
 
 #if ENABLE_CXX
 #pkginclude_HEADERS += 

qse/include/qse/cmn/Makefile.in

@@ -199,7 +199,7 @@ top_srcdir = @top_srcdir@
 pkginclude_HEADERS = \
 	mem.h chr.h str.h lda.h map.h \
 	rex.h sll.h dll.h opt.h tio.h \
-	fio.h pio.h sio.h time.h main.h stdio.h
+	fio.h pio.h sio.h time.h misc.h main.h stdio.h 
 
 all: all-am
 

qse/include/qse/cmn/str.h

@@ -1,5 +1,5 @@
 /*
- * $Id: str.h 290 2009-09-19 04:28:49Z hyunghwan.chung $
+ * $Id: str.h 295 2009-10-06 13:47:16Z hyunghwan.chung $
  *
     Copyright 2006-2009 Chung, Hyung-Hwan.
     This file is part of QSE.
@@ -104,12 +104,12 @@ struct qse_str_t
 }
 
 /**
- * The qse_strtrm_op_t defines a string trimming operation. 
+ * The qse_strtrmc_op_t defines a string trimming operation. 
  */
-enum qse_strtrm_op_t
+enum qse_strtrmc_op_t
 {
-	QSE_STRTRM_LEFT  = (1 << 0), /**< trim leading spaces */
+	QSE_STRTRMC_LEFT  = (1 << 0), /**< trim leading spaces */
-	QSE_STRTRM_RIGHT = (1 << 1)  /**< trim trailing spaces */
+	QSE_STRTRMC_RIGHT = (1 << 1)  /**< trim trailing spaces */
 };
 
 #ifdef __cplusplus
@@ -483,13 +483,13 @@ int qse_strspltrn (
 /******/
 
 /**
- * The qse_strtrm() function removes leading spaces and/or trailing
+ * The qse_strtrmc() function removes leading spaces and/or trailing
  * spaces from a string depending on the opt parameter. You can form
  * the op parameter by bitwise-OR'ing one or more of the following
  * values:
  *
- * - QSE_STRTRM_LEFT - trim leading spaces
+ * - QSE_STRTRMC_LEFT - trim leading spaces
- * - QSE_STRTRM_RIGHT - trim trailing spaces
+ * - QSE_STRTRMC_RIGHT - trim trailing spaces
  *
  * Should it remove leading spaces, it just returns the pointer to
  * the first non-space character in the string. Should it remove trailing
@@ -498,16 +498,33 @@ int qse_strspltrn (
  *
  * @code
  * qse_char_t a[] = QSE_T("   this is a test string   ");
- * qse_printf (QSE_T("[%s]\n"), qse_strtrm(a,QSE_STRTRM_LEFT|QSE_STRTRM_RIGHT));
+ * qse_printf (QSE_T("[%s]\n"), qse_strtrmc(a,QSE_STRTRMC_LEFT|QSE_STRTRMC_RIGHT));
  * @endcode
  *
  * @return the pointer to a trimmed string.
  */
-qse_char_t* qse_strtrm (
+qse_char_t* qse_strtrmc (
 	qse_char_t* str, /**< a string */
-	int         op   /**< operation code XOR'ed of qse_strtrm_op_t values */
+	int         op   /**< operation code XOR'ed of qse_strtrmc_op_t values */
 );
 
+qse_size_t qse_strtrm (
+	qse_char_t* str
+);
+
+qse_size_t qse_strxtrm (
+	qse_char_t* str,
+	qse_size_t len
+);
+
+qse_size_t qse_strpac (
+	qse_char_t* str
+);
+
+qse_size_t qse_strxpac (
+	qse_char_t* str, 
+	qse_size_t len
+);
 
 /****f* Common/qse_mbstowcs
  * NAME
@@ -831,6 +848,13 @@ qse_size_t qse_str_del (
 	qse_size_t size
 );
 
+qse_size_t qse_str_trm (
+	qse_str_t* str
+);
+
+qse_size_t qse_str_pac (
+	qse_str_t* str
+);
 
 #ifdef __cplusplus
 }

qse/include/qse/cut/cut.h

@@ -27,6 +27,12 @@
 
 /** @file
  * cut utility
+ *
+ */
+
+/**
+ * @example cut.c
+ * This example implements a simple cut utility.
  */
 
 /** @struct qse_cut_t
@@ -41,9 +47,7 @@ enum qse_cut_errnum_t
 	QSE_CUT_ENOERR,  /**< no error */
 	QSE_CUT_ENOMEM,  /**< insufficient memory */
 	QSE_CUT_ESELNV,  /**< selector not valid */
-	QSE_CUT_EREXIC,  /**< regular expression '${0}' incomplete */
+	QSE_SED_EIOFIL,  /**< io error with file '${0}'*/
-	QSE_CUT_EREXBL,  /**< failed to compile regular expression '${0}' */
-	QSE_CUT_EREXMA,  /**< failed to match regular expression */
 	QSE_CUT_EIOUSR   /**< error returned by user io handler */
 };
 typedef enum qse_cut_errnum_t qse_cut_errnum_t;
@@ -56,25 +60,30 @@ typedef enum qse_cut_errnum_t qse_cut_errnum_t;
  * editor with the qse_cut_seterrstr() function to customize an error string.
  */
 typedef const qse_char_t* (*qse_cut_errstr_t) (
-	qse_cut_t* sed,         /**< stream editor */
+	qse_cut_t* sed,         /**< cut object */
 	qse_cut_errnum_t num    /**< an error number */
 );
 
 /** 
- * The qse_cut_option_t type defines various option codes for a stream editor.
+ * The qse_cut_option_t type defines various option codes for a cut object.
- * Options can be OR'ed with each other and be passed to a stream editor with
+ * Options can be OR'ed with each other and be passed to a cut object with
  * the qse_cut_setoption() function.
  */
 enum qse_cut_option_t
 {
-	QSE_CUT_STRIPLS   = (1 << 0), /**< strip leading spaces from text */
+	/** show delimited line only. if not set, undelimited lines are 
-	QSE_CUT_KEEPTBS   = (1 << 1), /**< keep an trailing backslash */
+	 *  shown in its entirety */
-	QSE_CUT_ENSURENL  = (1 << 2), /**< ensure NL at the text end */
+	QSE_CUT_DELIMONLY    = (1 << 0),
-	QSE_CUT_QUIET     = (1 << 3), /**< do not print pattern space */
+	/** support mixing of c and f selectors */
-	QSE_CUT_STRICT    = (1 << 4), /**< do strict address check */
+	QSE_CUT_HYBRIDSEL    = (1 << 1),
-	QSE_CUT_STARTSTEP = (1 << 5), /**< allow start~step */
+	/** treat any whitespaces as an input delimiter */
-	QSE_CUT_REXBOUND  = (1 << 6), /**< allow {n,m} in regular expression */
+	QSE_CUT_WHITESPACE   = (1 << 2),
-	QSE_CUT_SAMELINE  = (1 << 7), /**< allow text on the same line as c, a, i */
+	/** fold adjacent delimiters */
+	QSE_CUT_FOLDDELIMS   = (1 << 3),
+	/** trim leading and trailing whitespaces off the input line */
+	QSE_CUT_TRIMSPACE    = (1 << 4),
+	/** normalize whitespaces in the input line */
+	QSE_CUT_NORMSPACE    = (1 << 5)
 };
 typedef enum qse_cut_option_t qse_cut_option_t;
 
@@ -88,17 +97,6 @@ enum qse_cut_sel_id_t
 };
 typedef enum qse_cut_sel_id_t qse_cut_sel_id_t;
 
-/**
- * The qse_cut_depth_t type defines IDs for qse_cut_getmaxdepth() and 
- * qse_cut_setmaxdepth().
- */
-enum qse_cut_depth_t
-{
-	QSE_CUT_DEPTH_REX_BUILD = (1 << 0),
-	QSE_CUT_DEPTH_REX_MATCH = (1 << 1)
-};
-typedef enum qse_cut_depth_t qse_cut_depth_t;
-
 /**
  * The qse_cut_io_cmd_t type defines IO command codes. The code indicates 
  * the action to take in an IO handler.
@@ -140,7 +138,7 @@ extern "C" {
 QSE_DEFINE_COMMON_FUNCTIONS (cut)
 
 /**
- * The qse_cut_open() function creates a stream editor object. A memory
+ * The qse_cut_open() function creates a cut object object. A memory
  * manager provided is used to allocate and destory the object and any dynamic
  * data through out its lifetime. An extension area is allocated if an
  * extension size greater than 0 is specified. You can access it with the
@@ -148,7 +146,7 @@ QSE_DEFINE_COMMON_FUNCTIONS (cut)
  * with the object. See #QSE_DEFINE_COMMON_FUNCTIONS() for qse_cut_getxtn().
  * When done, you should destroy the object with the qse_cut_close() function
  * to avoid any resource leaks including memory. 
- * @return A pointer to a stream editor on success, QSE_NULL on failure
+ * @return A pointer to a cut object on success, QSE_NULL on failure
  */
 qse_cut_t* qse_cut_open (
 	qse_mmgr_t*    mmgr, /**< a memory manager */
@@ -156,51 +154,34 @@ qse_cut_t* qse_cut_open (
 );
 
 /**
- * The qse_cut_close() function destroys a stream editor.
+ * The qse_cut_close() function destroys a cut object.
  */
 void qse_cut_close (
-	qse_cut_t* cut /**< stream editor */
+	qse_cut_t* cut /**< cut object */
 );
 
 /**
  * The qse_cut_getoption() function retrieves the current options set in
- * a stream editor.
+ * a cut object.
  * @return 0 or a number OR'ed of #qse_cut_option_t values 
  */
 int qse_cut_getoption (
-	qse_cut_t* cut /**< stream editor */
+	qse_cut_t* cut /**< cut object */
 );
 
 /**
  * The qse_cut_setoption() function sets the option code.
  */
 void qse_cut_setoption (
-	qse_cut_t* cut, /**< stream editor */
+	qse_cut_t* cut, /**< cut object */
 	int        opt  /**< 0 or a number OR'ed of #qse_cut_option_t values */
 );
 
-/**
- * The qse_cut_getmaxdepth() gets the maximum processing depth.
- */
-qse_size_t qse_cut_getmaxdepth (
-	qse_cut_t*      cut, /**< stream editor */
-	qse_cut_depth_t id   /**< one of qse_cut_depth_t values */
-);
-
-/**
- * The qse_cut_setmaxdepth() sets the maximum processing depth.
- */
-void qse_cut_setmaxdepth (
-	qse_cut_t* cut,  /**< stream editor */
-	int        ids,  /**< 0 or a number OR'ed of #qse_cut_depth_t values */
-	qse_size_t depth /**< maximum depth level */
-);
-
 /**
  * The qse_cut_geterrstr() gets an error string getter.
  */
 qse_cut_errstr_t qse_cut_geterrstr (
-	qse_cut_t*       cut    /**< stream editor */
+	qse_cut_t*       cut    /**< cut object */
 );
 
 /**
@@ -228,7 +209,7 @@ qse_cut_errstr_t qse_cut_geterrstr (
  * @endcode
  */
 void qse_cut_seterrstr (
-	qse_cut_t*       cut,   /**< stream editor */
+	qse_cut_t*       cut,   /**< cut object */
 	qse_cut_errstr_t errstr /**< an error string getter */
 );
 
@@ -237,7 +218,7 @@ void qse_cut_seterrstr (
  * @return the number of the last error
  */
 qse_cut_errnum_t qse_cut_geterrnum (
-	qse_cut_t* cut /**< stream editor */
+	qse_cut_t* cut /**< cut object */
 );
 
 /**
@@ -245,7 +226,7 @@ qse_cut_errnum_t qse_cut_geterrnum (
  * @return a pointer to an error message
  */
 const qse_char_t* qse_cut_geterrmsg (
-	qse_cut_t* cut /**< stream editor */
+	qse_cut_t* cut /**< cut object */
 );
 
 /**
@@ -254,7 +235,7 @@ const qse_char_t* qse_cut_geterrmsg (
  * to by each parameter.
  */
 void qse_cut_geterror (
-	qse_cut_t*         cut,    /**< stream editor */
+	qse_cut_t*         cut,    /**< cut object */
 	qse_cut_errnum_t*  errnum, /**< error number */
 	const qse_char_t** errmsg  /**< error message */
 );
@@ -264,7 +245,7 @@ void qse_cut_geterror (
  * location.
  */
 void qse_cut_seterrnum (
-        qse_cut_t*        cut,    /**< stream editor */
+        qse_cut_t*        cut,    /**< cut object */
 	qse_cut_errnum_t  errnum, /**< error number */
 	const qse_cstr_t* errarg  /**< argument for formatting error message */
 );
@@ -274,7 +255,7 @@ void qse_cut_seterrnum (
  * message for a given error number.
  */
 void qse_cut_seterrmsg (
-        qse_cut_t*        cut,      /**< stream editor */
+        qse_cut_t*        cut,      /**< cut object */
 	qse_cut_errnum_t  errnum,   /**< error number */
         const qse_char_t* errmsg    /**< error message */
 );
@@ -285,21 +266,30 @@ void qse_cut_seterrmsg (
  * and an array of formatting parameters.
  */
 void qse_cut_seterror (
-	qse_cut_t*           cut,    /**< stream editor */
+	qse_cut_t*           cut,    /**< cut object */
 	qse_cut_errnum_t     errnum, /**< error number */
 	const qse_cstr_t*    errarg  /**< array of arguments for formatting 
 	                              *   an error message */
 );
 
+/**
+ * The qse_cut_clear() function clears memory buffers internally allocated.
+ */
+void qse_cut_clear (
+	qse_cut_t* cut /**< cut object */
+);
+
 /**
  * The qse_cut_comp() function compiles a selector into an internal form.
  * @return 0 on success, -1 on error 
  */
 int qse_cut_comp (
-	qse_cut_t*        cut, /**< stream editor */
+	qse_cut_t*        cut, /**< cut object */
 	qse_cut_sel_id_t  sel, /**< initial selector type */
-	const qse_char_t* ptr, /**< pointer to a string containing commands */
+	const qse_char_t* str, /**< selector pointer */
-	qse_size_t        len  /**< the number of characters in the string */ 
+	qse_size_t        len, /**< selector length */ 
+	qse_char_t        din, /**< input field delimiter */
+	qse_char_t        dout /**< output field delimiter */
 );
 
 /**
@@ -307,7 +297,7 @@ int qse_cut_comp (
  * @return 0 on success, -1 on error
  */
 int qse_cut_exec (
-	qse_cut_t*        cut,  /**< stream editor */
+	qse_cut_t*        cut,  /**< cut object */
 	qse_cut_io_fun_t  inf,  /**< stream reader */
 	qse_cut_io_fun_t  outf  /**< stream writer */
 );

qse/lib/cmn/str_dyn.c

@@ -1,5 +1,5 @@
 /*
- * $Id: str_dyn.c 287 2009-09-15 10:01:02Z hyunghwan.chung $
+ * $Id: str_dyn.c 295 2009-10-06 13:47:16Z hyunghwan.chung $
  *
     Copyright 2006-2009 Chung, Hyung-Hwan.
     This file is part of QSE.
@@ -334,3 +334,24 @@ qse_size_t qse_str_del (qse_str_t* str, qse_size_t index, qse_size_t size)
 
 	return str->len;
 }
+
+qse_size_t qse_str_trm (qse_str_t* str)
+{
+	if (str->ptr != QSE_NULL)
+	{
+		str->len = qse_strxtrm (str->ptr, str->len);
+	}
+
+	return str->len;
+}
+
+qse_size_t qse_str_pac (qse_str_t* str)
+{
+	if (str->ptr != QSE_NULL)
+	{
+		str->len = qse_strxpac (str->ptr, str->len);
+	}
+
+	return str->len;
+}
+

qse/lib/cmn/str_utl.c

@@ -1,5 +1,5 @@
 /*
- * $Id: str_utl.c 287 2009-09-15 10:01:02Z hyunghwan.chung $
+ * $Id: str_utl.c 295 2009-10-06 13:47:16Z hyunghwan.chung $
  *
     Copyright 2006-2009 Chung, Hyung-Hwan.
     This file is part of QSE.
@@ -20,6 +20,7 @@
 
 #include <qse/cmn/str.h>
 #include <qse/cmn/chr.h>
+#include "mem.h"
 
 #define ISSPACE(c) \
 	((c) == QSE_T(' ') || (c) == QSE_T('\t') || (c) == QSE_T('\n') || \
@@ -311,7 +312,7 @@ int qse_strspl (
 	return qse_strspltrn (s, delim, lquote, rquote, escape, QSE_NULL);
 }
 
-qse_char_t* qse_strtrm (qse_char_t* str, int opt)
+qse_char_t* qse_strtrmc (qse_char_t* str, int opt)
 {
 	qse_char_t* p = str;
 	qse_char_t* s = QSE_NULL, * e = QSE_NULL;
@@ -326,8 +327,124 @@ qse_char_t* qse_strtrm (qse_char_t* str, int opt)
 		p++;
 	}
 
-	if (opt & QSE_STRTRM_RIGHT) e[1] = QSE_T('\0');
+	if (opt & QSE_STRTRMC_RIGHT) e[1] = QSE_T('\0');
-	if (opt & QSE_STRTRM_LEFT) str = s;
+	if (opt & QSE_STRTRMC_LEFT) str = s;
 
 	return str;
 }
+
+qse_size_t qse_strtrm (qse_char_t* str)
+{
+	qse_char_t* p = str;
+	qse_char_t* s = QSE_NULL, * e = QSE_NULL;
+
+	while (*p != QSE_T('\0')) 
+	{
+		if (!QSE_ISSPACE(*p)) 
+		{
+			if (s == QSE_NULL) s = p;
+			e = p;
+		}
+		p++;
+	}
+
+	if (e != QSE_NULL) 
+	{
+		e[1] = QSE_T('\0');
+		if (str != s)
+			QSE_MEMCPY (str, s, (e - s + 2) * QSE_SIZEOF(qse_char_t));
+		return e - s + 1;
+	}
+
+	str[0] = QSE_T('\0');
+	return 0;
+}
+
+qse_size_t qse_strxtrm (qse_char_t* str, qse_size_t len)
+{
+	qse_char_t* p = str, * end = str + len;
+	qse_char_t* s = QSE_NULL, * e = QSE_NULL;
+
+	while (p < end) 
+	{
+		if (!QSE_ISSPACE(*p)) 
+		{
+			if (s == QSE_NULL) s = p;
+			e = p;
+		}
+		p++;
+	}
+
+	if (e != QSE_NULL) 
+	{
+		/* do not insert a terminating null */
+		/*e[1] = QSE_T('\0');*/
+		if (str != s)
+			QSE_MEMCPY (str, s, (e - s + 2) * QSE_SIZEOF(qse_char_t));
+		return e - s + 1;
+	}
+
+	/* do not insert a terminating null */
+	/*str[0] = QSE_T('\0');*/
+	return 0;
+}
+
+qse_size_t qse_strpac (qse_char_t* str)
+{
+	qse_char_t* p = str, * q = str;
+
+	while (QSE_ISSPACE(*p)) p++;
+	while (*p != QSE_T('\0')) 
+	{
+		if (QSE_ISSPACE(*p)) 
+		{
+			*q++ = *p++;
+			while (QSE_ISSPACE(*p)) p++;
+		}
+		else *q++ = *p++;
+	}
+
+	if (q > str && QSE_ISSPACE(q[-1])) q--;
+	*q = QSE_T('\0');
+
+	return q - str;
+}
+
+qse_size_t qse_strxpac (qse_char_t* str, qse_size_t len)
+{
+	qse_char_t* p = str, * q = str, * end = str + len;
+	int followed_by_space = 0;
+	int state = 0;
+
+	while (p < end) 
+	{
+		if (state == 0) 
+		{
+			if (!QSE_ISSPACE(*p)) 
+			{
+				*q++ = *p;
+				state = 1;
+			}
+		}
+		else if (state == 1) 
+		{
+			if (QSE_ISSPACE(*p)) 
+			{
+				if (!followed_by_space) 
+				{
+					followed_by_space = 1;
+					*q++ = *p;
+				}
+			}
+			else 
+			{
+				followed_by_space = 0;
+				*q++ = *p;	
+			}
+		}
+
+		p++;
+	}
+
+	return (followed_by_space) ? (q - str -1): (q - str);
+}

qse/lib/cut/cut.c

@@ -20,11 +20,8 @@
 
 #include "cut.h"
 #include "../cmn/mem.h"
-#include <qse/cmn/rex.h>
 #include <qse/cmn/chr.h>
 
-#define MAX QSE_TYPE_MAX(qse_size_t)
-
 QSE_IMPLEMENT_COMMON_FUNCTIONS (cut)
 
 static qse_cut_t* qse_cut_init (qse_cut_t* cut, qse_mmgr_t* mmgr);
@@ -33,13 +30,6 @@ static void qse_cut_fini (qse_cut_t* cut);
 #define SETERR0(cut,num) \
 do { qse_cut_seterror (cut, num, QSE_NULL); } while (0)
 
-#define SETERR1(cut,num,argp,argl) \
-do { \
-	qse_cstr_t __ea__; \
-	__ea__.ptr = argp; __ea__.len = argl; \
-	qse_cut_seterror (cut, num, &__ea__); \
-} while (0)
-
 static int add_selector_block (qse_cut_t* cut)
 {
 	qse_cut_sel_blk_t* b;
@@ -59,6 +49,7 @@ static int add_selector_block (qse_cut_t* cut)
 	cut->sel.lb = b;
 	cut->sel.count = 0;
 	cut->sel.fcount = 0;
+	cut->sel.ccount = 0;
 
 	return 0;
 }
@@ -79,6 +70,7 @@ static void free_all_selector_blocks (qse_cut_t* cut)
 	cut->sel.lb->next = QSE_NULL;
 	cut->sel.count = 0;
 	cut->sel.fcount = 0;
+	cut->sel.ccount = 0;
 }
 
 qse_cut_t* qse_cut_open (qse_mmgr_t* mmgr, qse_size_t xtn)
@@ -125,13 +117,17 @@ static qse_cut_t* qse_cut_init (qse_cut_t* cut, qse_mmgr_t* mmgr)
 	/* the block has no data yet */
 	cut->sel.fb.len = 0;
 
+	cut->e.in.cflds = QSE_COUNTOF(cut->e.in.sflds);
+	cut->e.in.flds = cut->e.in.sflds;
+
 	return cut;
 }
 
-
 static void qse_cut_fini (qse_cut_t* cut)
 {
 	free_all_selector_blocks (cut);
+	if (cut->e.in.flds != cut->e.in.sflds)
+		QSE_MMGR_FREE (cut->mmgr, cut->e.in.flds);
 }
 
 void qse_cut_setoption (qse_cut_t* cut, int option)
@@ -144,21 +140,19 @@ int qse_cut_getoption (qse_cut_t* cut)
 	return cut->option;
 }
 
-qse_size_t qse_cut_getmaxdepth (qse_cut_t* cut, qse_cut_depth_t id)
+void qse_cut_clear (qse_cut_t* cut)
 {
-	return (id & QSE_CUT_DEPTH_REX_BUILD)? cut->depth.rex.build:
+	free_all_selector_blocks (cut);
-	       (id & QSE_CUT_DEPTH_REX_MATCH)? cut->depth.rex.match: 0;
+	if (cut->e.in.flds != cut->e.in.sflds)
-}
+		QSE_MMGR_FREE (cut->mmgr, cut->e.in.flds);
-
+	cut->e.in.cflds = QSE_COUNTOF(cut->e.in.sflds);
-void qse_cut_setmaxdepth (qse_cut_t* cut, int ids, qse_size_t depth)
+	cut->e.in.flds = cut->e.in.sflds;
-{
-	if (ids & QSE_CUT_DEPTH_REX_BUILD) cut->depth.rex.build = depth;
-	if (ids & QSE_CUT_DEPTH_REX_MATCH) cut->depth.rex.match = depth;
 }
 
 int qse_cut_comp (
 	qse_cut_t* cut, qse_cut_sel_id_t sel, 
-	const qse_char_t* str, qse_size_t len)
+	const qse_char_t* str, qse_size_t len,
+	qse_char_t din, qse_char_t dout)
 {
 	const qse_char_t* p = str;
 	const qse_char_t* xnd = str + len;
@@ -169,6 +163,7 @@ int qse_cut_comp (
 #define EOF(x) ((x) == QSE_CHAR_EOF)
 #define MASK_START (1 << 1)
 #define MASK_END (1 << 2)
+#define MAX QSE_TYPE_MAX(qse_size_t)
 
 	free_all_selector_blocks (cut);
 
@@ -192,6 +187,8 @@ int qse_cut_comp (
 			break;
 		}
 
+		if (cut->option & QSE_CUT_HYBRIDSEL)
+		{
 			if (c == QSE_T('c'))
 			{
 				sel = QSE_CUT_SEL_CHAR;
@@ -204,6 +201,7 @@ int qse_cut_comp (
 				c = NC (p, xnd);
 				while (QSE_ISSPACE(c)) c = NC (p, xnd);
 			}
+		}
 
 		if (QSE_ISDIGIT(c))
 		{
@@ -260,11 +258,14 @@ int qse_cut_comp (
 		cut->sel.lb->len++;
 		cut->sel.count++;
 		if (sel == QSE_CUT_SEL_FIELD) cut->sel.fcount++;
+		else cut->sel.ccount++;
 
 		if (EOF(c)) break;
 		if (c == QSE_T(',')) c = NC (p, xnd);
 	}
 
+	cut->sel.din = din;
+	cut->sel.dout = dout;
 	return 0;
 }
 
@@ -332,6 +333,9 @@ static int read_line (qse_cut_t* cut)
 	}
 
 	cut->e.in.num++;
+
+	if (cut->option & QSE_CUT_TRIMSPACE) qse_str_trm (&cut->e.in.line);
+	if (cut->option & QSE_CUT_NORMSPACE) qse_str_pac (&cut->e.in.line);
 	return 1;	
 }
 
@@ -381,6 +385,12 @@ static int write_char (qse_cut_t* cut, qse_char_t c)
 	return 0;
 }
 
+static int write_linebreak (qse_cut_t* cut)
+{
+	/* TODO: different line termination convention */
+	return write_char (cut, QSE_T('\n'));
+}
+
 static int write_str (qse_cut_t* cut, const qse_char_t* str, qse_size_t len)
 {
 	qse_size_t i;
@@ -391,17 +401,15 @@ static int write_str (qse_cut_t* cut, const qse_char_t* str, qse_size_t len)
 		return 0;
 }
 
-int cut_chars (qse_cut_t* cut, qse_size_t start, qse_size_t end)
+static int cut_chars (
+	qse_cut_t* cut, qse_size_t start, qse_size_t end, int delim)
 {
 	const qse_char_t* ptr = QSE_STR_PTR(&cut->e.in.line);
 	qse_size_t len = QSE_STR_LEN(&cut->e.in.line);
 
-	if (len <= 0) 
+	if (len <= 0) return 0;
-	{
+
-		/* TODO: delimited only */
+	if (start <= end)
-		if (write_char (cut, QSE_T('\n')) <= -1) return -1;
-	}
-	else if (start <= end)
 	{
 		if (start <= len && end > 0)
 		{
@@ -410,12 +418,13 @@ int cut_chars (qse_cut_t* cut, qse_size_t start, qse_size_t end)
 
 			if (end >= len) end = len - 1;
 						
+			if (delim && write_char (cut, cut->sel.dout) <= -1) return -1;
+
 			if (write_str (cut, &ptr[start], end-start+1) <= -1)
 				return -1;
-		}
 
-		/* TODO: DELIMTIED ONLY */
+			return 1;
-		if (write_char (cut, QSE_T('\n')) <= -1) return -1;
+		}
 	}
 	else
 	{
@@ -428,26 +437,144 @@ int cut_chars (qse_cut_t* cut, qse_size_t start, qse_size_t end)
 
 			if (start >= len) start = len - 1;
 
+			if (delim && write_char (cut, cut->sel.dout) <= -1) return -1;
+
 			for (i = start; i >= end; i--)
 			{
 				if (write_char (cut, ptr[i]) <= -1)
 					return -1;
 			}
-		}
 
-		/* TODO: DELIMTIED ONLY */
+			return 1;
-		if (write_char (cut, QSE_T('\n')) <= -1) return -1;
+		}
 	}
 
 	return 0;
 }
 
-int cut_fields (qse_cut_t* cut, qse_size_t start, qse_size_t end)
+static int isdelim (qse_cut_t* cut, qse_char_t c)
 {
-/* TODO: field splitting... delimited only */
+	return ((cut->option & QSE_CUT_WHITESPACE) && QSE_ISSPACE(c)) ||
+	        (!(cut->option & QSE_CUT_WHITESPACE) && c == cut->sel.din);
+}
+
+static int split_line (qse_cut_t* cut)
+{
+	const qse_char_t* ptr = QSE_STR_PTR(&cut->e.in.line);
+	qse_size_t len = QSE_STR_LEN(&cut->e.in.line);
+	qse_size_t i, x = 0, xl = 0;
+
+	cut->e.in.delimited = 0;
+	cut->e.in.flds[x].ptr = ptr;
+	for (i = 0; i < len; )
+	{
+		qse_char_t c = ptr[i++];
+		if (isdelim(cut,c))
+		{
+			if (cut->option & QSE_CUT_FOLDDELIMS)
+			{
+				while (i < len && isdelim(cut,ptr[i])) i++;
+			}
+
+			cut->e.in.flds[x++].len = xl;
+
+			if (x >= cut->e.in.cflds)
+			{
+				qse_cstr_t* tmp;
+				qse_size_t nsz;
+
+				nsz = cut->e.in.cflds;
+				if (nsz > 100000) nsz += 100000;
+				else nsz *= 2;
+				
+				tmp = QSE_MMGR_ALLOC (cut->mmgr, 
+					QSE_SIZEOF(*tmp) * nsz);
+				if (tmp == QSE_NULL) 
+				{
+					SETERR0 (cut, QSE_CUT_ENOMEM);
 					return -1;
 				}
 
+				QSE_MEMCPY (tmp, cut->e.in.flds, 
+					QSE_SIZEOF(*tmp) * cut->e.in.cflds);
+
+				if (cut->e.in.flds != cut->e.in.sflds)
+					QSE_MMGR_FREE (cut->mmgr, cut->e.in.flds);
+				cut->e.in.flds = tmp;
+				cut->e.in.cflds = nsz;
+			}
+
+			xl = 0;
+			cut->e.in.flds[x].ptr = &ptr[i];
+			cut->e.in.delimited = 1;
+		}
+		else xl++;
+	}
+	cut->e.in.flds[x].len = xl;
+	cut->e.in.nflds = ++x;
+	return 0;
+}
+
+static int cut_fields (
+	qse_cut_t* cut, qse_size_t start, qse_size_t end, int delim)
+{
+	qse_size_t len = cut->e.in.nflds;
+
+	if (!cut->e.in.delimited /*|| len <= 0*/) return 0;
+
+	QSE_ASSERT (len > 0);
+	if (start <= end)
+	{
+		if (start <= len && end > 0)
+		{
+			qse_size_t i;
+
+			if (start >= 1) start--;
+			if (end >= 1) end--;
+
+			if (end >= len) end = len - 1;
+
+			if (delim && write_char (cut, cut->sel.dout) <= -1) return -1;
+
+			for (i = start; i <= end; i++)
+			{
+				if (write_str (cut, cut->e.in.flds[i].ptr, cut->e.in.flds[i].len) <= -1)
+					return -1;
+
+				if (i < end && write_char (cut, cut->sel.dout) <= -1) return -1;
+			}
+
+			return 1;
+		}
+	}
+	else
+	{
+		if (start > 0 && end <= len)
+		{
+			qse_size_t i;
+
+			if (start >= 1) start--;
+			if (end >= 1) end--;
+
+			if (start >= len) start = len - 1;
+
+			if (delim && write_char (cut, cut->sel.dout) <= -1) return -1;
+
+			for (i = start; i >= end; i--)
+			{
+				if (write_str (cut, cut->e.in.flds[i].ptr, cut->e.in.flds[i].len) <= -1)
+					return -1;
+
+				if (i > end && write_char (cut, cut->sel.dout) <= -1) return -1;
+			}
+
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
 int qse_cut_exec (qse_cut_t* cut, qse_cut_io_fun_t inf, qse_cut_io_fun_t outf)
 {
 	int ret = 0;
@@ -500,11 +627,12 @@ int qse_cut_exec (qse_cut_t* cut, qse_cut_io_fun_t inf, qse_cut_io_fun_t outf)
 		cut->e.out.eof = 1;
 	}
 
-		
 	while (1)
 	{
 		qse_cut_sel_blk_t* b;
-		qse_size_t i;
+		int id = 0; /* mark 'no output' so far */
+		int delimited = 0;
+		int linebreak = 0;
 
 		n = read_line (cut);
 		if (n <= -1) { ret = -1; goto done; }
@@ -512,19 +640,86 @@ int qse_cut_exec (qse_cut_t* cut, qse_cut_io_fun_t inf, qse_cut_io_fun_t outf)
 
 		if (cut->sel.fcount > 0)
 		{
-/* split the line into fields */
+			if (split_line (cut) <= -1) { ret = -1; goto done; }
+			delimited = cut->e.in.delimited;
 		}
 
 		for (b = &cut->sel.fb; b != QSE_NULL; b = b->next)
 		{
+			qse_size_t i;
+
 			for (i = 0; i < b->len; i++)
 			{
-				ret = (b->range[i].id == QSE_CUT_SEL_CHAR)?
+				if (b->range[i].id == QSE_CUT_SEL_CHAR)
-					cut_chars (cut, b->range[i].start, b->range[i].end):
+				{
-					cut_fields (cut, b->range[i].start, b->range[i].end);
+					n = cut_chars (
-				if (ret <= -1) goto done;
+						cut,
+						b->range[i].start,
+						b->range[i].end,
+						id == 2 
+					);
+					if (n >= 1) 
+					{
+						/* mark a char's been output */
+						id = 1;
 					}
 				}
+				else
+				{
+					n = cut_fields (
+						cut,
+						b->range[i].start,
+						b->range[i].end,
+						id > 0 
+					);
+					if (n >= 1) 
+					{
+						/* mark a field's been output */
+						id = 2;
+					}
+				}
+
+				if (n <= -1) { ret = -1; goto done; }
+			}
+		}
+
+		if (cut->sel.ccount > 0)
+		{
+			/* so long as there is a character selector,
+			 * a newline must be printed */
+			linebreak = 1;
+		}
+		else if (cut->sel.fcount > 0)
+		{
+			/* if only field selectors are specified */
+
+			if (delimited) 
+			{
+				/* and if the input line is delimited,
+				 * write a line break */
+				linebreak = 1;
+			}
+			else if (!(cut->option & QSE_CUT_DELIMONLY))
+			{
+				/* if not delimited, write the
+				 * entire undelimited input line depending
+				 * on the option set. */
+				if (write_str (cut,
+					QSE_STR_PTR(&cut->e.in.line),
+					QSE_STR_LEN(&cut->e.in.line)) <= -1)
+				{
+					ret = -1; goto done; 	
+				}
+
+				/* a line break is needed in this case */
+				linebreak = 1;
+			}
+		}
+
+		if (linebreak && write_linebreak(cut) <= -1) 
+		{ 
+			ret = -1; goto done; 
+		}
 	}
 
 done:

qse/lib/cut/cut.h

@@ -34,7 +34,7 @@ struct qse_cut_sel_blk_t
 		qse_cut_sel_id_t id;
 		qse_size_t start;
 		qse_size_t end;
-	} range[256];
+	} range[128];
 	qse_cut_sel_blk_t* next;
 };
 
@@ -61,8 +61,13 @@ struct qse_cut_t
 	{
 		qse_cut_sel_blk_t  fb; /**< the first block is static */
 		qse_cut_sel_blk_t* lb; /**< points to the last block */
+
+		qse_char_t         din; /**< input field delimiter */
+		qse_char_t         dout; /**< output field delimiter */
+
 		qse_size_t         count; 
 		qse_size_t         fcount; 
+		qse_size_t         ccount; 
         } sel;
 
 	struct
@@ -94,6 +99,12 @@ struct qse_cut_t
 
                         qse_str_t line; /**< pattern space */
                         qse_size_t num; /**< current line number */
+
+			qse_size_t  nflds; /**< the number of fields */
+			qse_size_t  cflds; /**< capacity of flds field */
+			qse_cstr_t  sflds[128]; /**< static field buffer */
+			qse_cstr_t* flds;
+			int delimited;
                 } in;
 
 	} e;

qse/lib/cut/err.c

@@ -28,9 +28,7 @@ const qse_char_t* qse_cut_dflerrstr (qse_cut_t* cut, qse_cut_errnum_t errnum)
 		QSE_T("no error"),
 		QSE_T("insufficient memory"),
 		QSE_T("selector not valid"),
-		QSE_T("regular expression '${0}' incomplete"),
+		QSE_T("io error with file '${0}'"),
-		QSE_T("failed to compile regular expression '${0}'"),
-		QSE_T("failed to match regular expression"),
 		QSE_T("error returned by user io handler")
 	};
 

qse/samples/cmn/str.c

@@ -515,14 +515,14 @@ static int test12 (void)
 	qse_char_t a3[] = QSE_T("   this is a test string    ");
 
 	qse_printf (QSE_T("[%s] =>"), a1);
-	qse_printf (QSE_T("[%s]\n"), qse_strtrm (a1, QSE_STRTRM_LEFT));
+	qse_printf (QSE_T("[%s]\n"), qse_strtrmc (a1, QSE_STRTRMC_LEFT));
 
 	qse_printf (QSE_T("[%s] =>"), a2);
-	qse_printf (QSE_T("[%s]\n"), qse_strtrm (a2, QSE_STRTRM_RIGHT));
+	qse_printf (QSE_T("[%s]\n"), qse_strtrmc (a2, QSE_STRTRMC_RIGHT));
 
 	qse_printf (QSE_T("[%s] =>"), a3);
 	qse_printf (QSE_T("[%s]\n"), 
-		qse_strtrm (a3, QSE_STRTRM_LEFT|QSE_STRTRM_RIGHT));
+		qse_strtrmc (a3, QSE_STRTRMC_LEFT|QSE_STRTRMC_RIGHT));
 
 	return 0;
 }