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patch 7.4.1857

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Problem:    When a channel appends to a buffer that is 'nomodifiable' there is
            an error but appending is done anyway.
Solution:   Add the 'modifiable' option.  Refuse to write to a 'nomodifiable'
            when the value is 1.
This commit is contained in:
Bram Moolenaar
2016-05-29 16:17:08 +02:00
parent 324a78f3b6
commit 9f5842e63f
5 changed files with 109 additions and 17 deletions
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5
src/structs.h
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@@ -1401,6 +1401,8 @@ typedef struct {
partial_T *ch_partial;
buf_T *ch_buffer; /* buffer to read from or write to */
int ch_nomodifiable; /* TRUE when buffer can be 'nomodifiable' */
int ch_nomod_error; /* TRUE when e_modifiable was given */
int ch_buf_append; /* write appended lines instead top-bot */
linenr_T ch_buf_top; /* next line to send */
linenr_T ch_buf_bot; /* last line to send */
@@ -1477,6 +1479,8 @@ struct channel_S {
#define JO_IN_BUF 0x4000000 /* "in_buf" (JO_OUT_BUF << 2) */
#define JO_CHANNEL 0x8000000 /* "channel" */
#define JO_BLOCK_WRITE 0x10000000 /* "block_write" */
#define JO_OUT_MODIFIABLE 0x20000000 /* "out_modifiable" */
#define JO_ERR_MODIFIABLE 0x40000000 /* "err_modifiable" (JO_OUT_ << 1) */
#define JO_ALL 0x7fffffff
#define JO_MODE_ALL (JO_MODE + JO_IN_MODE + JO_OUT_MODE + JO_ERR_MODE)
@@ -1500,6 +1504,7 @@ typedef struct
char_u jo_io_name_buf[4][NUMBUFLEN];
char_u *jo_io_name[4]; /* not allocated! */
int jo_io_buf[4];
int jo_modifiable[4];
channel_T *jo_channel;
linenr_T jo_in_top;