diff --git a/src/editor/editbuffer.c b/src/editor/editbuffer.c index f76204ba2..747d47122 100644 --- a/src/editor/editbuffer.c +++ b/src/editor/editbuffer.c @@ -95,11 +95,10 @@ * * @return NULL if byte_index is negative or larger than file size; pointer to byte otherwise. */ - static char * edit_buffer_get_byte_ptr (const edit_buffer_t * buf, off_t byte_index) { - unsigned char *b; + void *b; if (byte_index >= (buf->curs1 + buf->curs2) || byte_index < 0) return NULL; @@ -109,12 +108,12 @@ edit_buffer_get_byte_ptr (const edit_buffer_t * buf, off_t byte_index) off_t p; p = buf->curs1 + buf->curs2 - byte_index - 1; - b = buf->buffers2[p >> S_EDIT_BUF_SIZE]; - return (char *) &b[EDIT_BUF_SIZE - 1 - (p & M_EDIT_BUF_SIZE)]; + b = g_ptr_array_index (buf->buffers2, p >> S_EDIT_BUF_SIZE); + return (char *) b + EDIT_BUF_SIZE - 1 - (p & M_EDIT_BUF_SIZE); } - b = buf->buffers1[byte_index >> S_EDIT_BUF_SIZE]; - return (char *) &b[byte_index & M_EDIT_BUF_SIZE]; + b = g_ptr_array_index (buf->buffers1, byte_index >> S_EDIT_BUF_SIZE); + return (char *) b + (byte_index & M_EDIT_BUF_SIZE); } /* --------------------------------------------------------------------------------------------- */ @@ -129,11 +128,11 @@ edit_buffer_get_byte_ptr (const edit_buffer_t * buf, off_t byte_index) void edit_buffer_init (edit_buffer_t * buf) { - memset (buf->buffers1, 0, sizeof (buf->buffers1)); - memset (buf->buffers2, 0, sizeof (buf->buffers2)); + buf->buffers1 = g_ptr_array_sized_new (MAXBUFF + 1); + buf->buffers2 = g_ptr_array_sized_new (MAXBUFF + 1); + buf->curs1 = 0; buf->curs2 = 0; - buf->buffers2[0] = g_malloc0 (EDIT_BUF_SIZE); } /* --------------------------------------------------------------------------------------------- */ @@ -146,12 +145,16 @@ edit_buffer_init (edit_buffer_t * buf) void edit_buffer_clean (edit_buffer_t * buf) { - size_t j; - - for (j = 0; j <= MAXBUFF; j++) + if (buf->buffers1 != NULL) { - g_free (buf->buffers1[j]); - g_free (buf->buffers2[j]); + g_ptr_array_foreach (buf->buffers1, (GFunc) g_free, NULL); + g_ptr_array_free (buf->buffers1, TRUE); + } + + if (buf->buffers2 != NULL) + { + g_ptr_array_foreach (buf->buffers2, (GFunc) g_free, NULL); + g_ptr_array_free (buf->buffers2, TRUE); } } @@ -311,16 +314,18 @@ edit_buffer_get_prev_utf (const edit_buffer_t * buf, off_t byte_index, int *char void edit_buffer_insert (edit_buffer_t * buf, int c) { + void *b; off_t i; i = buf->curs1 & M_EDIT_BUF_SIZE; /* add a new buffer if we've reached the end of the last one */ if (i == 0) - buf->buffers1[buf->curs1 >> S_EDIT_BUF_SIZE] = g_malloc0 (EDIT_BUF_SIZE); + g_ptr_array_add (buf->buffers1, g_malloc0 (EDIT_BUF_SIZE)); /* perform the insertion */ - buf->buffers1[buf->curs1 >> S_EDIT_BUF_SIZE][i] = (unsigned char) c; + b = g_ptr_array_index (buf->buffers1, buf->curs1 >> S_EDIT_BUF_SIZE); + *((unsigned char *) b + i) = (unsigned char) c; /* update cursor position */ buf->curs1++; @@ -338,16 +343,18 @@ edit_buffer_insert (edit_buffer_t * buf, int c) void edit_buffer_insert_ahead (edit_buffer_t * buf, int c) { + void *b; off_t i; i = buf->curs2 & M_EDIT_BUF_SIZE; /* add a new buffer if we've reached the end of the last one */ - if (((buf->curs2 + 1) & M_EDIT_BUF_SIZE) == 0) - buf->buffers2[(buf->curs2 + 1) >> S_EDIT_BUF_SIZE] = g_malloc0 (EDIT_BUF_SIZE); + if (i == 0) + g_ptr_array_add (buf->buffers2, g_malloc0 (EDIT_BUF_SIZE)); /* perform the insertion */ - buf->buffers2[buf->curs2 >> S_EDIT_BUF_SIZE][EDIT_BUF_SIZE - 1 - i] = (unsigned char) c; + b = g_ptr_array_index (buf->buffers2, buf->curs2 >> S_EDIT_BUF_SIZE); + *((unsigned char *) b + EDIT_BUF_SIZE - 1 - i) = (unsigned char) c; /* update cursor position */ buf->curs2++; @@ -365,19 +372,23 @@ edit_buffer_insert_ahead (edit_buffer_t * buf, int c) int edit_buffer_delete (edit_buffer_t * buf) { + void *b; unsigned char c; off_t prev; off_t i; prev = buf->curs2 - 1; + b = g_ptr_array_index (buf->buffers2, prev >> S_EDIT_BUF_SIZE); i = prev & M_EDIT_BUF_SIZE; - c = buf->buffers2[prev >> S_EDIT_BUF_SIZE][EDIT_BUF_SIZE - 1 - i]; + c = *((unsigned char *) b + EDIT_BUF_SIZE - 1 - i); - if ((buf->curs2 & M_EDIT_BUF_SIZE) == 0) + if (i == 0) { - g_free (buf->buffers2[buf->curs2 >> S_EDIT_BUF_SIZE]); - buf->buffers2[buf->curs2 >> S_EDIT_BUF_SIZE] = NULL; + i = buf->buffers2->len - 1; + b = g_ptr_array_index (buf->buffers2, i); + g_ptr_array_remove_index (buf->buffers2, i); + g_free (b); } buf->curs2 = prev; @@ -397,19 +408,23 @@ edit_buffer_delete (edit_buffer_t * buf) int edit_buffer_backspace (edit_buffer_t * buf) { + void *b; unsigned char c; off_t prev; off_t i; prev = buf->curs1 - 1; + b = g_ptr_array_index (buf->buffers1, prev >> S_EDIT_BUF_SIZE); i = prev & M_EDIT_BUF_SIZE; - c = buf->buffers1[prev >> S_EDIT_BUF_SIZE][i]; + c = *((unsigned char *) b + i); if (i == 0) { - g_free (buf->buffers1[buf->curs1 >> S_EDIT_BUF_SIZE]); - buf->buffers1[buf->curs1 >> S_EDIT_BUF_SIZE] = NULL; + i = buf->buffers1->len - 1; + b = g_ptr_array_index (buf->buffers1, i); + g_ptr_array_remove_index (buf->buffers1, i); + g_free (b); } buf->curs1 = prev; @@ -431,21 +446,25 @@ edit_buffer_backspace (edit_buffer_t * buf) off_t edit_buffer_read_file (edit_buffer_t * buf, int fd, off_t size) { - off_t ret; + off_t ret = 0; off_t i; off_t data_size; + void *b; buf->curs2 = size; i = buf->curs2 >> S_EDIT_BUF_SIZE; - if (buf->buffers2[i] == NULL) - buf->buffers2[i] = g_malloc0 (EDIT_BUF_SIZE); - /* fill last part of buffers2 */ data_size = buf->curs2 & M_EDIT_BUF_SIZE; - ret = mc_read (fd, (char *) buf->buffers2[i] + EDIT_BUF_SIZE - data_size, data_size); - if (ret < 0 || ret != data_size) - return ret; + if (data_size != 0) + { + b = g_malloc0 (EDIT_BUF_SIZE); + g_ptr_array_add (buf->buffers2, b); + ret = mc_read (fd, (char *) b + EDIT_BUF_SIZE - data_size, data_size); + if (ret < 0 || ret != data_size) + return ret; + + } /* fullfill other parts of buffers2 from end to begin */ data_size = EDIT_BUF_SIZE; @@ -453,16 +472,28 @@ edit_buffer_read_file (edit_buffer_t * buf, int fd, off_t size) { off_t sz; - /* edit->buffers2[0] is already allocated */ - if (buf->buffers2[i] == NULL) - buf->buffers2[i] = g_malloc0 (data_size); - sz = mc_read (fd, (char *) buf->buffers2[i], data_size); + b = g_malloc0 (data_size); + g_ptr_array_add (buf->buffers2, b); + sz = mc_read (fd, b, data_size); if (sz >= 0) ret += sz; if (sz != data_size) break; } + /* reverse buffer */ + for (i = 0; i < buf->buffers2->len / 2; i++) + { + void **b1, **b2; + + b1 = &g_ptr_array_index (buf->buffers2, i); + b2 = &g_ptr_array_index (buf->buffers2, buf->buffers2->len - 1 - i); + + b = *b1; + *b1 = *b2; + *b2 = b; + } + return ret; } @@ -482,62 +513,59 @@ edit_buffer_write_file (edit_buffer_t * buf, int fd) off_t ret = 0; off_t i; off_t data_size, sz; + void *b; /* write all fullfilled parts of buffers1 from begin to end */ - data_size = EDIT_BUF_SIZE; - for (i = 0; i < buf->curs1 >> S_EDIT_BUF_SIZE; i++) + if (buf->buffers1->len != 0) { - sz = mc_write (fd, (char *) buf->buffers1[i], data_size); + data_size = EDIT_BUF_SIZE; + for (i = 0; i < (off_t) buf->buffers1->len - 1; i++) + { + b = g_ptr_array_index (buf->buffers1, i); + sz = mc_write (fd, b, data_size); + if (sz >= 0) + ret += sz; + else if (i == 0) + ret = sz; + if (sz != data_size) + return ret; + } + + /* write last partially filled part of buffers1 */ + data_size = ((buf->curs1 - 1) & M_EDIT_BUF_SIZE) + 1; + b = g_ptr_array_index (buf->buffers1, i); + sz = mc_write (fd, b, data_size); if (sz >= 0) ret += sz; - else if (i == 0) - ret = sz; - - if (sz != data_size) - return ret; - } - - /* write last partially filled part of buffers1 */ - data_size = buf->curs1 & M_EDIT_BUF_SIZE; - if (data_size != 0) - { - sz = mc_write (fd, (char *) buf->buffers1[i], data_size); - if (sz >= 0) - ret += sz; - if (sz != data_size) return ret; } /* write buffers2 from end to begin, if buffers2 contains some data */ - if (buf->curs2 != 0) + if (buf->buffers2->len != 0) { - buf->curs2--; - /* write last partially filled part of buffers2 */ - i = buf->curs2 >> S_EDIT_BUF_SIZE; - data_size = (buf->curs2 & M_EDIT_BUF_SIZE) + 1; - sz = mc_write (fd, (char *) buf->buffers2[i] + EDIT_BUF_SIZE - data_size, data_size); + i = buf->buffers2->len - 1; + b = g_ptr_array_index (buf->buffers2, i); + data_size = ((buf->curs2 - 1) & M_EDIT_BUF_SIZE) + 1; + sz = mc_write (fd, (char *) b + EDIT_BUF_SIZE - data_size, data_size); if (sz >= 0) ret += sz; if (sz == data_size) { - data_size = EDIT_BUF_SIZE; - /* write other fullfilled parts of buffers2 from end to begin */ + data_size = EDIT_BUF_SIZE; while (--i >= 0) { - sz = mc_write (fd, (char *) buf->buffers2[i], data_size); + b = g_ptr_array_index (buf->buffers2, i); + sz = mc_write (fd, b, data_size); if (sz >= 0) ret += sz; - if (sz != data_size) break; } } - - buf->curs2++; } return ret; diff --git a/src/editor/editbuffer.h b/src/editor/editbuffer.h index b62e9a380..2733f9434 100644 --- a/src/editor/editbuffer.h +++ b/src/editor/editbuffer.h @@ -41,8 +41,8 @@ typedef struct edit_buffer_struct { off_t curs1; /* position of the cursor from the beginning of the file. */ off_t curs2; /* position from the end of the file */ - unsigned char *buffers1[MAXBUFF + 1]; /* all data up to curs1 */ - unsigned char *buffers2[MAXBUFF + 1]; /* all data from end of file down to curs2 */ + GPtrArray *buffers1; /* all data up to curs1 */ + GPtrArray *buffers2; /* all data from end of file down to curs2 */ } edit_buffer_t; /*** global variables defined in .c file *********************************************************/