Some additional space/tab cleanups

mercurial/base85.c

@@ -1,155 +1,155 b''
 /*
  base85 codec
 
  Copyright 2006 Brendan Cully <[e-mail]>
 
  This software may be used and distributed according to the terms of
  the GNU General Public License, incorporated herein by reference.
 
  Largely based on git's implementation
 */
 
 #include <Python.h>
 
 static const char b85chars[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
 	"abcdefghijklmnopqrstuvwxyz!#$%&()*+-;<=>?@^_`{|}~";
 static char b85dec[256];
 
 static void
 b85prep(void)
 {
 	int i;
 
 	memset(b85dec, 0, sizeof(b85dec));
 	for (i = 0; i < sizeof(b85chars); i++)
 		b85dec[(int)(b85chars[i])] = i + 1;
 }
 
 static PyObject *
 b85encode(PyObject *self, PyObject *args)
 {
 	const unsigned char *text;
 	PyObject *out;
 	char *dst;
 	int len, olen, i;
 	unsigned int acc, val, ch;
-        int pad = 0;
+	int pad = 0;
 
 	if (!PyArg_ParseTuple(args, "s#|i", &text, &len, &pad))
 		return NULL;
 
-        if (pad)
-                olen = ((len + 3) / 4 * 5) - 3;
-        else {
-                olen = len % 4;
-                if (olen)
-                        olen++;
-                olen += len / 4 * 5;
-        }
+	if (pad)
+		olen = ((len + 3) / 4 * 5) - 3;
+	else {
+		olen = len % 4;
+		if (olen)
+			olen++;
+		olen += len / 4 * 5;
+	}
 	if (!(out = PyString_FromStringAndSize(NULL, olen + 3)))
 		return NULL;
 
 	dst = PyString_AS_STRING(out);
 
 	while (len) {
 		acc = 0;
 		for (i = 24; i >= 0; i -= 8) {
 			ch = *text++;
 			acc |= ch << i;
 			if (--len == 0)
 				break;
 		}
 		for (i = 4; i >= 0; i--) {
 			val = acc % 85;
 			acc /= 85;
 			dst[i] = b85chars[val];
 		}
 		dst += 5;
 	}
 
-        if (!pad)
-                _PyString_Resize(&out, olen);
+	if (!pad)
+		_PyString_Resize(&out, olen);
 
 	return out;
 }
 
 static PyObject *
 b85decode(PyObject *self, PyObject *args)
 {
 	PyObject *out;
 	const char *text;
 	char *dst;
 	int len, i, j, olen, c, cap;
 	unsigned int acc;
 
 	if (!PyArg_ParseTuple(args, "s#", &text, &len))
 		return NULL;
 
 	olen = len / 5 * 4;
 	i = len % 5;
 	if (i)
 		olen += i - 1;
 	if (!(out = PyString_FromStringAndSize(NULL, olen)))
 		return NULL;
 
 	dst = PyString_AS_STRING(out);
 
 	i = 0;
 	while (i < len)
 	{
 		acc = 0;
 		cap = len - i - 1;
 		if (cap > 4)
 			cap = 4;
 		for (j = 0; j < cap; i++, j++)
 		{
 			c = b85dec[(int)*text++] - 1;
 			if (c < 0)
 				return PyErr_Format(PyExc_ValueError, "Bad base85 character at position %d", i);
 			acc = acc * 85 + c;
 		}
 		if (i++ < len)
 		{
 			c = b85dec[(int)*text++] - 1;
 			if (c < 0)
 				return PyErr_Format(PyExc_ValueError, "Bad base85 character at position %d", i);
 			/* overflow detection: 0xffffffff == "|NsC0",
 			 * "|NsC" == 0x03030303 */
 			if (acc > 0x03030303 || (acc *= 85) > 0xffffffff - c)
 				return PyErr_Format(PyExc_ValueError, "Bad base85 sequence at position %d", i);
 			acc += c;
 		}
 
 		cap = olen < 4 ? olen : 4;
 		olen -= cap;
 		for (j = 0; j < 4 - cap; j++)
 			acc *= 85;
 		if (cap && cap < 4)
 			acc += 0xffffff >> (cap - 1) * 8;
 		for (j = 0; j < cap; j++)
 		{
 			acc = (acc << 8) | (acc >> 24);
 			*dst++ = acc;
 		}
 	}
 
 	return out;
 }
 
 static char base85_doc[] = "Base85 Data Encoding";
 
 static PyMethodDef methods[] = {
 	{"b85encode", b85encode, METH_VARARGS,
-         "Encode text in base85.\n\n"
-         "If the second parameter is true, pad the result to a multiple of "
-         "five characters.\n"},
+	 "Encode text in base85.\n\n"
+	 "If the second parameter is true, pad the result to a multiple of "
+	 "five characters.\n"},
 	{"b85decode", b85decode, METH_VARARGS, "Decode base85 text.\n"},
 	{NULL, NULL}
 };
 
 PyMODINIT_FUNC initbase85(void)
 {
 	Py_InitModule3("base85", methods, base85_doc);
 
 	b85prep();
 }

mercurial/osutil.c

@@ -1,409 +1,409 b''
 /*
  osutil.c - native operating system services
 
  Copyright 2007 Matt Mackall and others
 
  This software may be used and distributed according to the terms of
  the GNU General Public License, incorporated herein by reference.
 */
 
 #define _ATFILE_SOURCE
 #include <Python.h>
 #ifdef _WIN32
 #include <windows.h>
 #else
 #include <dirent.h>
 #include <fcntl.h>
 #include <string.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
 #endif
 
 #ifdef _WIN32
 /*
 stat struct compatible with hg expectations
 Mercurial only uses st_mode, st_size and st_mtime
 the rest is kept to minimize changes between implementations
 */
 struct hg_stat {
 	int st_dev;
 	int st_mode;
 	int st_nlink;
 	__int64 st_size;
 	int st_mtime;
 	int st_ctime;
 };
 struct listdir_stat {
 	PyObject_HEAD
 	struct hg_stat st;
 };
 #else
 struct listdir_stat {
 	PyObject_HEAD
 	struct stat st;
 };
 #endif
 
 #define listdir_slot(name) \
-    static PyObject *listdir_stat_##name(PyObject *self, void *x) \
-    { \
-        return PyInt_FromLong(((struct listdir_stat *)self)->st.name); \
-    }
+	static PyObject *listdir_stat_##name(PyObject *self, void *x) \
+	{ \
+		return PyInt_FromLong(((struct listdir_stat *)self)->st.name); \
+	}
 
 listdir_slot(st_dev)
 listdir_slot(st_mode)
 listdir_slot(st_nlink)
 #ifdef _WIN32
 static PyObject *listdir_stat_st_size(PyObject *self, void *x)
 {
 	return PyLong_FromLongLong(
 		(PY_LONG_LONG)((struct listdir_stat *)self)->st.st_size);
 }
 #else
 listdir_slot(st_size)
 #endif
 listdir_slot(st_mtime)
 listdir_slot(st_ctime)
 
 static struct PyGetSetDef listdir_stat_getsets[] = {
 	{"st_dev", listdir_stat_st_dev, 0, 0, 0},
 	{"st_mode", listdir_stat_st_mode, 0, 0, 0},
 	{"st_nlink", listdir_stat_st_nlink, 0, 0, 0},
 	{"st_size", listdir_stat_st_size, 0, 0, 0},
 	{"st_mtime", listdir_stat_st_mtime, 0, 0, 0},
 	{"st_ctime", listdir_stat_st_ctime, 0, 0, 0},
 	{0, 0, 0, 0, 0}
 };
 
 static PyObject *listdir_stat_new(PyTypeObject *t, PyObject *a, PyObject *k)
 {
 	return t->tp_alloc(t, 0);
 }
 
 static void listdir_stat_dealloc(PyObject *o)
 {
 	o->ob_type->tp_free(o);
 }
 
 static PyTypeObject listdir_stat_type = {
 	PyObject_HEAD_INIT(NULL)
 	0,                         /*ob_size*/
 	"osutil.stat",             /*tp_name*/
 	sizeof(struct listdir_stat), /*tp_basicsize*/
 	0,                         /*tp_itemsize*/
 	(destructor)listdir_stat_dealloc, /*tp_dealloc*/
 	0,                         /*tp_print*/
 	0,                         /*tp_getattr*/
 	0,                         /*tp_setattr*/
 	0,                         /*tp_compare*/
 	0,                         /*tp_repr*/
 	0,                         /*tp_as_number*/
 	0,                         /*tp_as_sequence*/
 	0,                         /*tp_as_mapping*/
 	0,                         /*tp_hash */
 	0,                         /*tp_call*/
 	0,                         /*tp_str*/
 	0,                         /*tp_getattro*/
 	0,                         /*tp_setattro*/
 	0,                         /*tp_as_buffer*/
 	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
 	"stat objects",            /* tp_doc */
 	0,                         /* tp_traverse */
 	0,                         /* tp_clear */
 	0,                         /* tp_richcompare */
 	0,                         /* tp_weaklistoffset */
 	0,                         /* tp_iter */
 	0,                         /* tp_iternext */
 	0,                         /* tp_methods */
 	0,                         /* tp_members */
 	listdir_stat_getsets,      /* tp_getset */
 	0,                         /* tp_base */
 	0,                         /* tp_dict */
 	0,                         /* tp_descr_get */
 	0,                         /* tp_descr_set */
 	0,                         /* tp_dictoffset */
 	0,                         /* tp_init */
 	0,                         /* tp_alloc */
 	listdir_stat_new,          /* tp_new */
 };
 
 #ifdef _WIN32
 
 static int to_python_time(const FILETIME *tm)
 {
 	/* number of seconds between epoch and January 1 1601 */
 	const __int64 a0 = (__int64)134774L * (__int64)24L * (__int64)3600L;
 	/* conversion factor from 100ns to 1s */
 	const __int64 a1 = 10000000;
 	/* explicit (int) cast to suspend compiler warnings */
 	return (int)((((__int64)tm->dwHighDateTime << 32)
 			+ tm->dwLowDateTime) / a1 - a0);
 }
 
 static PyObject *make_item(const WIN32_FIND_DATAA *fd, int wantstat)
 {
 	PyObject *py_st;
 	struct hg_stat *stp;
 
 	int kind = (fd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
 		? _S_IFDIR : _S_IFREG;
 
 	if (!wantstat)
 		return Py_BuildValue("si", fd->cFileName, kind);
 
 	py_st = PyObject_CallObject((PyObject *)&listdir_stat_type, NULL);
 	if (!py_st)
 		return NULL;
 
 	stp = &((struct listdir_stat *)py_st)->st;
 	/*
 	use kind as st_mode
 	rwx bits on Win32 are meaningless
 	and Hg does not use them anyway
 	*/
 	stp->st_mode  = kind;
 	stp->st_mtime = to_python_time(&fd->ftLastWriteTime);
 	stp->st_ctime = to_python_time(&fd->ftCreationTime);
 	if (kind == _S_IFREG)
 		stp->st_size =	((__int64)fd->nFileSizeHigh << 32)
 				+ fd->nFileSizeLow;
 	return Py_BuildValue("siN", fd->cFileName,
 		kind, py_st);
 }
 
 static PyObject *_listdir(char *path, int plen, int wantstat, char *skip)
 {
 	PyObject *rval = NULL; /* initialize - return value */
 	PyObject *list;
 	HANDLE fh;
 	WIN32_FIND_DATAA fd;
 	char *pattern;
 
 	/* build the path + \* pattern string */
 	pattern = malloc(plen+3); /* path + \* + \0 */
 	if (!pattern) {
 		PyErr_NoMemory();
 		goto error_nomem;
 	}
 	strcpy(pattern, path);
 
 	if (plen > 0) {
 		char c = path[plen-1];
 		if (c != ':' && c != '/' && c != '\\')
 			pattern[plen++] = '\\';
 	}
 	strcpy(pattern + plen, "*");
 
 	fh = FindFirstFileA(pattern, &fd);
 	if (fh == INVALID_HANDLE_VALUE) {
 		PyErr_SetFromWindowsErrWithFilename(GetLastError(), path);
 		goto error_file;
 	}
 
 	list = PyList_New(0);
 	if (!list)
 		goto error_list;
 
 	do {
 		PyObject *item;
 
 		if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
 			if (!strcmp(fd.cFileName, ".")
 			|| !strcmp(fd.cFileName, ".."))
 				continue;
 
 			if (skip && !strcmp(fd.cFileName, skip)) {
 				rval = PyList_New(0);
 				goto error;
 			}
 		}
 
 		item = make_item(&fd, wantstat);
 		if (!item)
 			goto error;
 
 		if (PyList_Append(list, item)) {
 			Py_XDECREF(item);
 			goto error;
 		}
 
 		Py_XDECREF(item);
 	} while (FindNextFileA(fh, &fd));
 
 	if (GetLastError() != ERROR_NO_MORE_FILES) {
 		PyErr_SetFromWindowsErrWithFilename(GetLastError(), path);
 		goto error;
 	}
 
 	rval = list;
 	Py_XINCREF(rval);
 error:
 	Py_XDECREF(list);
 error_list:
 	FindClose(fh);
 error_file:
 	free(pattern);
 error_nomem:
 	return rval;
 }
 
 #else
 
 int entkind(struct dirent *ent)
 {
 #ifdef DT_REG
 	switch (ent->d_type) {
 	case DT_REG: return S_IFREG;
 	case DT_DIR: return S_IFDIR;
 	case DT_LNK: return S_IFLNK;
 	case DT_BLK: return S_IFBLK;
 	case DT_CHR: return S_IFCHR;
 	case DT_FIFO: return S_IFIFO;
 	case DT_SOCK: return S_IFSOCK;
 	}
 #endif
 	return -1;
 }
 
 static PyObject *_listdir(char *path, int pathlen, int keepstat, char *skip)
 {
 	PyObject *list, *elem, *stat, *ret = NULL;
 	char fullpath[PATH_MAX + 10];
 	int kind, err;
 	struct stat st;
 	struct dirent *ent;
 	DIR *dir;
 #ifdef AT_SYMLINK_NOFOLLOW
 	int dfd = -1;
 #endif
 
 	if (pathlen >= PATH_MAX) {
 		PyErr_SetString(PyExc_ValueError, "path too long");
 		goto error_value;
 	}
 	strncpy(fullpath, path, PATH_MAX);
 	fullpath[pathlen] = '/';
 
 #ifdef AT_SYMLINK_NOFOLLOW
 	dfd = open(path, O_RDONLY);
 	if (dfd == -1) {
 		PyErr_SetFromErrnoWithFilename(PyExc_OSError, path);
 		goto error_value;
 	}
 	dir = fdopendir(dfd);
 #else
 	dir = opendir(path);
 #endif
 	if (!dir) {
 		PyErr_SetFromErrnoWithFilename(PyExc_OSError, path);
 		goto error_dir;
  	}
 
 	list = PyList_New(0);
 	if (!list)
 		goto error_list;
 
 	while ((ent = readdir(dir))) {
 		if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
 			continue;
 
 		kind = entkind(ent);
 		if (kind == -1 || keepstat) {
 #ifdef AT_SYMLINK_NOFOLLOW
 			err = fstatat(dfd, ent->d_name, &st,
 				      AT_SYMLINK_NOFOLLOW);
 #else
 			strncpy(fullpath + pathlen + 1, ent->d_name,
 				PATH_MAX - pathlen);
 			fullpath[PATH_MAX] = 0;
 			err = lstat(fullpath, &st);
 #endif
 			if (err == -1) {
 				strncpy(fullpath + pathlen + 1, ent->d_name,
 					PATH_MAX - pathlen);
 				fullpath[PATH_MAX] = 0;
 				PyErr_SetFromErrnoWithFilename(PyExc_OSError,
 							       fullpath);
 				goto error;
 			}
 			kind = st.st_mode & S_IFMT;
 		}
 
 		/* quit early? */
 		if (skip && kind == S_IFDIR && !strcmp(ent->d_name, skip)) {
 			ret = PyList_New(0);
 			goto error;
 		}
 
 		if (keepstat) {
 			stat = PyObject_CallObject((PyObject *)&listdir_stat_type, NULL);
 			if (!stat)
 				goto error;
 			memcpy(&((struct listdir_stat *)stat)->st, &st, sizeof(st));
 			elem = Py_BuildValue("siN", ent->d_name, kind, stat);
 		} else
 			elem = Py_BuildValue("si", ent->d_name, kind);
 		if (!elem)
 			goto error;
 
 		PyList_Append(list, elem);
 		Py_DECREF(elem);
 	}
 
 	ret = list;
 	Py_INCREF(ret);
 
 error:
 	Py_DECREF(list);
 error_list:
 	closedir(dir);
 error_dir:
 #ifdef AT_SYMLINK_NOFOLLOW
 	close(dfd);
 #endif
 error_value:
 	return ret;
 }
 
 #endif /* ndef _WIN32 */
 
 static PyObject *listdir(PyObject *self, PyObject *args, PyObject *kwargs)
 {
 	PyObject *statobj = NULL; /* initialize - optional arg */
 	PyObject *skipobj = NULL; /* initialize - optional arg */
 	char *path, *skip = NULL;
 	int wantstat, plen;
 
 	static char *kwlist[] = {"path", "stat", "skip", NULL};
 
 	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s#|OO:listdir",
 			kwlist, &path, &plen, &statobj, &skipobj))
 		return NULL;
 
 	wantstat = statobj && PyObject_IsTrue(statobj);
 
 	if (skipobj && skipobj != Py_None) {
 		skip = PyString_AsString(skipobj);
 		if (!skip)
 			return NULL;
 	}
 
 	return _listdir(path, plen, wantstat, skip);
 }
 
 static char osutil_doc[] = "Native operating system services.";
 
 static PyMethodDef methods[] = {
 	{"listdir", (PyCFunction)listdir, METH_VARARGS | METH_KEYWORDS,
 	 "list a directory\n"},
 	{NULL, NULL}
 };
 
 PyMODINIT_FUNC initosutil(void)
 {
 	if (PyType_Ready(&listdir_stat_type) == -1)
 		return;
 
 	Py_InitModule3("osutil", methods, osutil_doc);
 }

mercurial/parsers.c

@@ -1,435 +1,435 b''
 /*
  parsers.c - efficient content parsing
 
  Copyright 2008 Matt Mackall <[e-mail]> and others
 
  This software may be used and distributed according to the terms of
  the GNU General Public License, incorporated herein by reference.
 */
 
 #include <Python.h>
 #include <ctype.h>
 #include <string.h>
 
 static int hexdigit(char c)
 {
 	if (c >= '0' && c <= '9')
 		return c - '0';
 	if (c >= 'a' && c <= 'f')
 		return c - 'a' + 10;
 	if (c >= 'A' && c <= 'F')
 		return c - 'A' + 10;
 
 	PyErr_SetString(PyExc_ValueError, "input contains non-hex character");
 	return 0;
 }
 
 /*
  * Turn a hex-encoded string into binary.
  */
 static PyObject *unhexlify(const char *str, int len)
 {
 	PyObject *ret;
 	const char *c;
 	char *d;
 
 	ret = PyString_FromStringAndSize(NULL, len / 2);
 	if (!ret)
 		return NULL;
 
 	d = PyString_AS_STRING(ret);
 	for (c = str; c < str + len;) {
 		int hi = hexdigit(*c++);
 		int lo = hexdigit(*c++);
 		*d++ = (hi << 4) | lo;
 	}
 
 	return ret;
 }
 
 /*
  * This code assumes that a manifest is stitched together with newline
  * ('\n') characters.
  */
 static PyObject *parse_manifest(PyObject *self, PyObject *args)
 {
 	PyObject *mfdict, *fdict;
 	char *str, *cur, *start, *zero;
 	int len;
 
 	if (!PyArg_ParseTuple(args, "O!O!s#:parse_manifest",
 			      &PyDict_Type, &mfdict,
 			      &PyDict_Type, &fdict,
 			      &str, &len))
 		goto quit;
 
 	for (start = cur = str, zero = NULL; cur < str + len; cur++) {
 		PyObject *file = NULL, *node = NULL;
 		PyObject *flags = NULL;
 		int nlen;
 
 		if (!*cur) {
 			zero = cur;
 			continue;
 		}
 		else if (*cur != '\n')
 			continue;
 
 		if (!zero) {
 			PyErr_SetString(PyExc_ValueError,
 					"manifest entry has no separator");
 			goto quit;
 		}
 
 		file = PyString_FromStringAndSize(start, zero - start);
 		if (!file)
 			goto bail;
 
 		nlen = cur - zero - 1;
 
 		node = unhexlify(zero + 1, nlen > 40 ? 40 : nlen);
 		if (!node)
 			goto bail;
 
 		if (nlen > 40) {
 			PyObject *flags;
 
 			flags = PyString_FromStringAndSize(zero + 41,
 							   nlen - 40);
 			if (!flags)
 				goto bail;
 
 			if (PyDict_SetItem(fdict, file, flags) == -1)
 				goto bail;
 		}
 
 		if (PyDict_SetItem(mfdict, file, node) == -1)
 			goto bail;
 
 		start = cur + 1;
 		zero = NULL;
 
 		Py_XDECREF(flags);
 		Py_XDECREF(node);
 		Py_XDECREF(file);
 		continue;
 	bail:
 		Py_XDECREF(flags);
 		Py_XDECREF(node);
 		Py_XDECREF(file);
 		goto quit;
 	}
 
 	if (len > 0 && *(cur - 1) != '\n') {
 		PyErr_SetString(PyExc_ValueError,
 				"manifest contains trailing garbage");
 		goto quit;
 	}
 
 	Py_INCREF(Py_None);
 	return Py_None;
 quit:
 	return NULL;
 }
 
 #ifdef _WIN32
 # ifdef _MSC_VER
 /* msvc 6.0 has problems */
 #  define inline __inline
 typedef unsigned long uint32_t;
 typedef unsigned __int64 uint64_t;
 # else
 #  include <stdint.h>
 # endif
 static uint32_t ntohl(uint32_t x)
 {
 	return ((x & 0x000000ffUL) << 24) |
-		((x & 0x0000ff00UL) <<  8) |
-		((x & 0x00ff0000UL) >>  8) |
-		((x & 0xff000000UL) >> 24);
+	       ((x & 0x0000ff00UL) <<  8) |
+	       ((x & 0x00ff0000UL) >>  8) |
+	       ((x & 0xff000000UL) >> 24);
 }
 #else
 /* not windows */
 # include <sys/types.h>
 # if defined __BEOS__ && !defined __HAIKU__
 #  include <ByteOrder.h>
 # else
 #  include <arpa/inet.h>
 # endif
 # include <inttypes.h>
 #endif
 
 static PyObject *parse_dirstate(PyObject *self, PyObject *args)
 {
 	PyObject *dmap, *cmap, *parents = NULL, *ret = NULL;
 	PyObject *fname = NULL, *cname = NULL, *entry = NULL;
 	char *str, *cur, *end, *cpos;
 	int state, mode, size, mtime;
 	unsigned int flen;
 	int len;
 	char decode[16]; /* for alignment */
 
 	if (!PyArg_ParseTuple(args, "O!O!s#:parse_dirstate",
 			      &PyDict_Type, &dmap,
 			      &PyDict_Type, &cmap,
 			      &str, &len))
 		goto quit;
 
 	/* read parents */
 	if (len < 40)
 		goto quit;
 
 	parents = Py_BuildValue("s#s#", str, 20, str + 20, 20);
 	if (!parents)
 		goto quit;
 
 	/* read filenames */
 	cur = str + 40;
 	end = str + len;
 
 	while (cur < end - 17) {
 		/* unpack header */
 		state = *cur;
 		memcpy(decode, cur + 1, 16);
 		mode = ntohl(*(uint32_t *)(decode));
 		size = ntohl(*(uint32_t *)(decode + 4));
 		mtime = ntohl(*(uint32_t *)(decode + 8));
 		flen = ntohl(*(uint32_t *)(decode + 12));
 		cur += 17;
 		if (flen > end - cur) {
 			PyErr_SetString(PyExc_ValueError, "overflow in dirstate");
 			goto quit;
 		}
 
 		entry = Py_BuildValue("ciii", state, mode, size, mtime);
 		if (!entry)
 			goto quit;
 		PyObject_GC_UnTrack(entry); /* don't waste time with this */
 
 		cpos = memchr(cur, 0, flen);
 		if (cpos) {
 			fname = PyString_FromStringAndSize(cur, cpos - cur);
 			cname = PyString_FromStringAndSize(cpos + 1,
 							   flen - (cpos - cur) - 1);
 			if (!fname || !cname ||
 			    PyDict_SetItem(cmap, fname, cname) == -1 ||
 			    PyDict_SetItem(dmap, fname, entry) == -1)
 				goto quit;
 			Py_DECREF(cname);
 		} else {
 			fname = PyString_FromStringAndSize(cur, flen);
 			if (!fname ||
 			    PyDict_SetItem(dmap, fname, entry) == -1)
 				goto quit;
 		}
 		cur += flen;
 		Py_DECREF(fname);
 		Py_DECREF(entry);
 		fname = cname = entry = NULL;
 	}
 
 	ret = parents;
 	Py_INCREF(ret);
 quit:
 	Py_XDECREF(fname);
 	Py_XDECREF(cname);
 	Py_XDECREF(entry);
 	Py_XDECREF(parents);
 	return ret;
 }
 
 const char nullid[20];
 const int nullrev = -1;
 
 /* create an index tuple, insert into the nodemap */
 static PyObject * _build_idx_entry(PyObject *nodemap, int n, uint64_t offset_flags,
                                    int comp_len, int uncomp_len, int base_rev,
                                    int link_rev, int parent_1, int parent_2,
                                    const char *c_node_id)
 {
 	int err;
 	PyObject *entry, *node_id, *n_obj;
 
 	node_id = PyString_FromStringAndSize(c_node_id, 20);
 	n_obj = PyInt_FromLong(n);
 	if (!node_id || !n_obj)
 		err = -1;
 	else
 		err = PyDict_SetItem(nodemap, node_id, n_obj);
 
 	Py_XDECREF(n_obj);
 	if (err)
 		goto error_dealloc;
 
 	entry = Py_BuildValue("LiiiiiiN", offset_flags, comp_len,
 			      uncomp_len, base_rev, link_rev,
 			      parent_1, parent_2, node_id);
 	if (!entry)
 		goto error_dealloc;
 	PyObject_GC_UnTrack(entry); /* don't waste time with this */
 
 	return entry;
 
 error_dealloc:
 	Py_XDECREF(node_id);
 	return NULL;
 }
 
 /* RevlogNG format (all in big endian, data may be inlined):
  *    6 bytes: offset
  *    2 bytes: flags
  *    4 bytes: compressed length
  *    4 bytes: uncompressed length
  *    4 bytes: base revision
  *    4 bytes: link revision
  *    4 bytes: parent 1 revision
  *    4 bytes: parent 2 revision
  *   32 bytes: nodeid (only 20 bytes used)
  */
 static int _parse_index_ng (const char *data, int size, int inlined,
 			    PyObject *index, PyObject *nodemap)
 {
 	PyObject *entry;
 	int n = 0, err;
 	uint64_t offset_flags;
 	int comp_len, uncomp_len, base_rev, link_rev, parent_1, parent_2;
 	const char *c_node_id;
 	const char *end = data + size;
 	char decode[64]; /* to enforce alignment with inline data */
 
 	while (data < end) {
 		unsigned int step;
-		
+
 		memcpy(decode, data, 64);
 		offset_flags = ntohl(*((uint32_t *) (decode + 4)));
 		if (n == 0) /* mask out version number for the first entry */
 			offset_flags &= 0xFFFF;
 		else {
 			uint32_t offset_high =  ntohl(*((uint32_t *) decode));
 			offset_flags |= ((uint64_t) offset_high) << 32;
 		}
 
 		comp_len = ntohl(*((uint32_t *) (decode + 8)));
 		uncomp_len = ntohl(*((uint32_t *) (decode + 12)));
 		base_rev = ntohl(*((uint32_t *) (decode + 16)));
 		link_rev = ntohl(*((uint32_t *) (decode + 20)));
 		parent_1 = ntohl(*((uint32_t *) (decode + 24)));
 		parent_2 = ntohl(*((uint32_t *) (decode + 28)));
 		c_node_id = decode + 32;
 
 		entry = _build_idx_entry(nodemap, n, offset_flags,
 					comp_len, uncomp_len, base_rev,
 					link_rev, parent_1, parent_2,
 					c_node_id);
 		if (!entry)
 			return 0;
 
 		if (inlined) {
 			err = PyList_Append(index, entry);
 			Py_DECREF(entry);
 			if (err)
 				return 0;
 		} else
 			PyList_SET_ITEM(index, n, entry); /* steals reference */
 
 		n++;
 		step = 64 + (inlined ? comp_len : 0);
 		if (end - data < step)
 			break;
 		data += step;
 	}
 	if (data != end) {
 		if (!PyErr_Occurred())
 			PyErr_SetString(PyExc_ValueError, "corrupt index file");
 		return 0;
 	}
 
-	/* create the nullid/nullrev entry in the nodemap and the 
+	/* create the nullid/nullrev entry in the nodemap and the
 	 * magic nullid entry in the index at [-1] */
-	entry = _build_idx_entry(nodemap, 
+	entry = _build_idx_entry(nodemap,
 			nullrev, 0, 0, 0, -1, -1, -1, -1, nullid);
 	if (!entry)
 		return 0;
 	if (inlined) {
 		err = PyList_Append(index, entry);
 		Py_DECREF(entry);
 		if (err)
 			return 0;
 	} else
 		PyList_SET_ITEM(index, n, entry); /* steals reference */
 
 	return 1;
 }
 
 /* This function parses a index file and returns a Python tuple of the
  * following format: (index, nodemap, cache)
  *
  * index: a list of tuples containing the RevlogNG records
  * nodemap: a dict mapping node ids to indices in the index list
  * cache: if data is inlined, a tuple (index_file_content, 0) else None
  */
 static PyObject *parse_index(PyObject *self, PyObject *args)
 {
 	const char *data;
 	int size, inlined;
-	PyObject *rval = NULL, *index = NULL, *nodemap = NULL, *cache = NULL; 
+	PyObject *rval = NULL, *index = NULL, *nodemap = NULL, *cache = NULL;
 	PyObject *data_obj = NULL, *inlined_obj;
 
 	if (!PyArg_ParseTuple(args, "s#O", &data, &size, &inlined_obj))
 		return NULL;
 	inlined = inlined_obj && PyObject_IsTrue(inlined_obj);
 
-	/* If no data is inlined, we know the size of the index list in 
-	 * advance: size divided by size of one one revlog record (64 bytes) 
-	 * plus one for the nullid */  
+	/* If no data is inlined, we know the size of the index list in
+	 * advance: size divided by size of one one revlog record (64 bytes)
+	 * plus one for the nullid */
 	index = inlined ? PyList_New(0) : PyList_New(size / 64 + 1);
 	if (!index)
 		goto quit;
 
 	nodemap = PyDict_New();
 	if (!nodemap)
 		goto quit;
 
 	/* set up the cache return value */
 	if (inlined) {
 		/* Note that the reference to data_obj is only borrowed */
 		data_obj = PyTuple_GET_ITEM(args, 0);
 		cache = Py_BuildValue("iO", 0, data_obj);
 		if (!cache)
 			goto quit;
 	} else {
 		cache = Py_None;
 		Py_INCREF(Py_None);
 	}
 
 	/* actually populate the index and the nodemap with data */
 	if (!_parse_index_ng (data, size, inlined, index, nodemap))
 		goto quit;
 
 	rval = Py_BuildValue("NNN", index, nodemap, cache);
 	if (!rval)
 		goto quit;
 	return rval;
 
 quit:
 	Py_XDECREF(index);
 	Py_XDECREF(nodemap);
 	Py_XDECREF(cache);
 	Py_XDECREF(rval);
 	return NULL;
 }
 
 
 static char parsers_doc[] = "Efficient content parsing.";
 
 static PyMethodDef methods[] = {
 	{"parse_manifest", parse_manifest, METH_VARARGS, "parse a manifest\n"},
 	{"parse_dirstate", parse_dirstate, METH_VARARGS, "parse a dirstate\n"},
 	{"parse_index", parse_index, METH_VARARGS, "parse a revlog index\n"},
 	{NULL, NULL}
 };
 
 PyMODINIT_FUNC initparsers(void)
 {
 	Py_InitModule3("parsers", methods, parsers_doc);
 }

mercurial/strutil.py

@@ -1,41 +1,41 b''
 # strutil.py - string utilities for Mercurial
 #
 # Copyright 2006 Vadim Gelfer <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 def findall(haystack, needle, start=0, end=None):
     if end is None:
         end = len(haystack)
     if end < 0:
         end += len(haystack)
     if start < 0:
         start += len(haystack)
     while start < end:
         c = haystack.find(needle, start, end)
         if c == -1:
             break
         yield c
         start = c + 1
 
 def rfindall(haystack, needle, start=0, end=None):
     if end is None:
         end = len(haystack)
     if end < 0:
         end += len(haystack)
     if start < 0:
         start += len(haystack)
     while end >= 0:
         c = haystack.rfind(needle, start, end)
         if c == -1:
             break
         yield c
         end = c - 1
 
 def rsplit(s, sep=None, maxsplit=-1):
     try:
         return s.rsplit(sep, maxsplit)
     except AttributeError:
-        return  [chunk[::-1] for chunk in
-                 s[::-1].split(sep, maxsplit)[::-1]]
+        return [chunk[::-1] for chunk in
+                s[::-1].split(sep, maxsplit)[::-1]]