about summary refs log tree commit diff stats
path: root/WWW/Library/Implementation/HTChunk.c
diff options
context:
space:
mode:
Diffstat (limited to 'WWW/Library/Implementation/HTChunk.c')
-rw-r--r--WWW/Library/Implementation/HTChunk.c336
1 files changed, 0 insertions, 336 deletions
diff --git a/WWW/Library/Implementation/HTChunk.c b/WWW/Library/Implementation/HTChunk.c
deleted file mode 100644
index 2ea36c85..00000000
--- a/WWW/Library/Implementation/HTChunk.c
+++ /dev/null
@@ -1,336 +0,0 @@
-/*
- * $LynxId: HTChunk.c,v 1.27 2012/02/07 11:28:44 tom Exp $
- *
- *		Chunk handling:	Flexible arrays
- *		===============================
- *
- */
-
-#include <HTUtils.h>
-#include <HTChunk.h>
-
-#include <LYLeaks.h>
-
-/*
- *	Initialize a chunk with a certain allocation unit
- */
-void HTChunkInit(HTChunk *ch, int grow)
-{
-    ch->data = 0;
-    ch->growby = grow;
-    ch->size = 0;
-    ch->allocated = 0;
-}
-
-/*	Create a chunk with a certain allocation unit
- *	--------------
- */
-HTChunk *HTChunkCreate(int grow)
-{
-    HTChunk *ch = typecalloc(HTChunk);
-
-    if (ch == NULL)
-	outofmem(__FILE__, "creation of chunk");
-
-    HTChunkInit(ch, grow);
-    return ch;
-}
-
-HTChunk *HTChunkCreateMayFail(int grow, int failok)
-{
-    HTChunk *ch = typecalloc(HTChunk);
-
-    if (ch == NULL) {
-	if (!failok) {
-	    outofmem(__FILE__, "creation of chunk");
-	} else {
-	    return ch;
-	}
-    }
-
-    assert(ch != NULL);
-
-    HTChunkInit(ch, grow);
-    ch->failok = failok;
-    return ch;
-}
-
-/*	Create a chunk with a certain allocation unit and ensured size
- *	--------------
- */
-HTChunk *HTChunkCreate2(int grow, size_t needed)
-{
-    HTChunk *ch = typecalloc(HTChunk);
-
-    if (ch == NULL)
-	outofmem(__FILE__, "HTChunkCreate2");
-
-    assert(ch != NULL);
-
-    HTChunkInit(ch, grow);
-    if (needed-- > 0) {
-	/* Round up */
-	ch->allocated = (int) (needed - (needed % (size_t) ch->growby)
-			       + (unsigned) ch->growby);
-	CTRACE((tfp, "HTChunkCreate2: requested %d, allocate %u\n",
-		(int) needed, (unsigned) ch->allocated));
-	ch->data = typecallocn(char, (unsigned) ch->allocated);
-
-	if (!ch->data)
-	    outofmem(__FILE__, "HTChunkCreate2 data");
-    }
-    return ch;
-}
-
-/*	Clear a chunk of all data
- *	--------------------------
- */
-void HTChunkClear(HTChunk *ch)
-{
-    FREE(ch->data);
-    ch->size = 0;
-    ch->allocated = 0;
-}
-
-/*     Free a chunk (and it's chain, if any)
- *     -------------------------------------
- */
-void HTChunkFree(HTChunk *ch)
-{
-    HTChunk *next;
-
-    do {
-	next = ch->next;
-	FREE(ch->data);
-	FREE(ch);
-	ch = next;
-    } while (ch != NULL);
-}
-
-/*	Realloc the chunk
- *	-----------------
- */
-BOOL HTChunkRealloc(HTChunk *ch, int growby)
-{
-    char *data;
-
-    ch->allocated = ch->allocated + growby;
-
-    data = (ch->data
-	    ? typeRealloc(char, ch->data, ch->allocated)
-	    : typecallocn(char, ch->allocated));
-
-    if (data) {
-	ch->data = data;
-    } else if (ch->failok) {
-	HTChunkClear(ch);	/* allocation failed, clear all data - kw */
-	return FALSE;		/* caller should check ch->allocated - kw */
-    } else {
-	outofmem(__FILE__, "HTChunkRealloc");
-    }
-    return TRUE;
-}
-
-/*	Append a character
- *	------------------
- */
-void HTChunkPutc(HTChunk *ch, unsigned c)
-{
-    if (ch->size >= ch->allocated) {
-	if (!HTChunkRealloc(ch, ch->growby))
-	    return;
-    }
-    ch->data[ch->size++] = (char) c;
-}
-
-/* like above but no realloc: extend to another chunk if necessary */
-HTChunk *HTChunkPutc2(HTChunk *ch, int c)
-{
-    if (ch->size >= ch->allocated) {
-	HTChunk *chunk = HTChunkCreateMayFail(ch->growby, ch->failok);
-
-	ch->next = chunk;
-	ch = chunk;
-	HTChunkPutc(ch, UCH(c));
-    } else {
-	ch->data[ch->size++] = (char) c;
-    }
-    return ch;
-}
-
-/*	Ensure a certain size
- *	---------------------
- */
-void HTChunkEnsure(HTChunk *ch, int needed)
-{
-    if (needed <= ch->allocated)
-	return;
-    ch->allocated = needed - 1 - ((needed - 1) % ch->growby)
-	+ ch->growby;		/* Round up */
-    ch->data = (ch->data
-		? typeRealloc(char, ch->data, ch->allocated)
-		: typecallocn(char, ch->allocated));
-
-    if (ch->data == NULL)
-	outofmem(__FILE__, "HTChunkEnsure");
-}
-
-/*
- * Append a block of characters.
- */
-void HTChunkPutb(HTChunk *ch, const char *b, int l)
-{
-    if (l <= 0)
-	return;
-    if (ch->size + l > ch->allocated) {
-	int growby = l - (l % ch->growby) + ch->growby;		/* Round up */
-
-	if (!HTChunkRealloc(ch, growby))
-	    return;
-    }
-    MemCpy(ch->data + ch->size, b, l);
-    ch->size += l;
-}
-
-/* like above but no realloc: extend to another chunk if necessary */
-HTChunk *HTChunkPutb2(HTChunk *ch, const char *b, int l)
-{
-    if (l <= 0)
-	return ch;
-    if (ch->size + l > ch->allocated) {
-	HTChunk *chunk;
-	int m = ch->allocated - ch->size;
-
-	MemCpy(ch->data + ch->size, b, (unsigned) m);
-	ch->size += m;
-
-	chunk = HTChunkCreateMayFail(ch->growby, ch->failok);
-	ch->next = chunk;
-	ch = chunk;
-	HTChunkPutb(ch, b + m, l - m);
-    } else {
-	MemCpy(ch->data + ch->size, b, (unsigned) l);
-	ch->size += l;
-    }
-    return ch;
-}
-
-#define PUTC(code)  ch->data[ch->size++] = (char)(code)
-#define PUTC2(code) ch->data[ch->size++] = (char)(0x80|(0x3f &(code)))
-
-/*
- * Append a character encoded as UTF-8.
- */
-void HTChunkPutUtf8Char(HTChunk *ch, UCode_t code)
-{
-    int utflen;
-
-    if (TOASCII(code) < 128)
-	utflen = 1;
-    else if (code < 0x800L) {
-	utflen = 2;
-    } else if (code < 0x10000L) {
-	utflen = 3;
-    } else if (code < 0x200000L) {
-	utflen = 4;
-    } else if (code < 0x4000000L) {
-	utflen = 5;
-    } else if (code <= 0x7fffffffL) {
-	utflen = 6;
-    } else
-	utflen = 0;
-
-    if (ch->size + utflen > ch->allocated) {
-	int growby = (ch->growby >= utflen) ? ch->growby : utflen;
-
-	if (!HTChunkRealloc(ch, growby))
-	    return;
-    }
-
-    switch (utflen) {
-    case 0:
-	return;
-    case 1:
-	ch->data[ch->size++] = (char) code;
-	return;
-    case 2:
-	PUTC(0xc0 | (code >> 6));
-	break;
-    case 3:
-	PUTC(0xe0 | (code >> 12));
-	break;
-    case 4:
-	PUTC(0xf0 | (code >> 18));
-	break;
-    case 5:
-	PUTC(0xf8 | (code >> 24));
-	break;
-    case 6:
-	PUTC(0xfc | (code >> 30));
-	break;
-    }
-    switch (utflen) {
-    case 6:
-	PUTC2(code >> 24);
-	/* FALLTHRU */
-    case 5:
-	PUTC2(code >> 18);
-	/* FALLTHRU */
-    case 4:
-	PUTC2(code >> 12);
-	/* FALLTHRU */
-    case 3:
-	PUTC2(code >> 6);
-	/* FALLTHRU */
-    case 2:
-	PUTC2(code);
-	break;
-    }
-}
-
-/*	Terminate a chunk
- *	-----------------
- */
-void HTChunkTerminate(HTChunk *ch)
-{
-    HTChunkPutc(ch, (char) 0);
-}
-
-/*	Append a string
- *	---------------
- */
-void HTChunkPuts(HTChunk *ch, const char *s)
-{
-    const char *p;
-
-    if (s != NULL) {
-	for (p = s; *p; p++) {
-	    if (ch->size >= ch->allocated) {
-		if (!HTChunkRealloc(ch, ch->growby))
-		    break;
-	    }
-	    ch->data[ch->size++] = *p;
-	}
-    }
-}
-
-/* like above but no realloc: extend to another chunk if necessary */
-HTChunk *HTChunkPuts2(HTChunk *ch, const char *s)
-{
-    const char *p;
-
-    if (s != NULL) {
-	for (p = s; *p; p++) {
-	    if (ch->size >= ch->allocated) {
-		HTChunk *chunk = HTChunkCreateMayFail(ch->growby, ch->failok);
-
-		ch->next = chunk;
-		ch = chunk;
-		HTChunkPuts(ch, p);
-		break;
-	    }
-	    ch->data[ch->size++] = *p;
-	}
-    }
-    return ch;
-}
generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2025-05-01 22:59:38 +0000