Mercurial > vim
view src/crypt_zip.c @ 33713:9aa03e12b2b5 v9.0.2090
patch 9.0.2090: complete_info() skips entries with 'noselect'
Commit: https://github.com/vim/vim/commit/57f9ce1a0977da13e5923214086795ffa2d28ce1
Author: Christian Brabandt <cb@256bit.org>
Date: Sat Nov 4 09:58:14 2023 +0100
patch 9.0.2090: complete_info() skips entries with 'noselect'
Problem: complete_info() skips entries with 'noselect'
Solution: Check, if first entry is at original text state
Unfortunately, Commit daef8c74375141974d61b85199b383017644978c
introduced a regression, that when ':set completeopt+=noselect' is set
and no completion item has been selected yet, it did not fill the
complete_info['items'] list.
This happened, because the current match item did not have the
CP_ORIGINAL_TEXT flag set and then the cp->prev pointer did point to the
original flag item, which caused the following while loop to not being
run but being skipped instead.
So when the 'noselect' is set, only start with to the previous selection
item, if the initial completion item has the CP_ORIGINAL_TEXT flag set,
else use the 2nd previous item instead.
fixes: #13451
closes: #13452
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sat, 04 Nov 2023 10:15:04 +0100 |
parents | 3d4e28569a6d |
children |
line wrap: on
line source
/* vi:set ts=8 sts=4 sw=4 noet: * * VIM - Vi IMproved by Bram Moolenaar * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ /* * crypt_zip.c: Zip encryption support. */ #include "vim.h" #if defined(FEAT_CRYPT) || defined(PROTO) /* * Optional encryption support. * Mohsin Ahmed, mosh@sasi.com, 98-09-24 * Based on zip/crypt sources. * * NOTE FOR USA: Since 2000 exporting this code from the USA is allowed to * most countries. There are a few exceptions, but that still should not be a * problem since this code was originally created in Europe and India. */ // Need a type that should be 32 bits. 64 also works but wastes space. typedef unsigned int u32_T; // int is at least 32 bits // The state of encryption, referenced by cryptstate_T. typedef struct { u32_T keys[3]; } zip_state_T; static u32_T crc_32_table[256]; /* * Fill the CRC table, if not done already. */ static void make_crc_tab(void) { u32_T s, t, v; static int done = FALSE; if (done) return; for (t = 0; t < 256; t++) { v = t; for (s = 0; s < 8; s++) v = (v >> 1) ^ ((v & 1) * (u32_T)0xedb88320L); crc_32_table[t] = v; } done = TRUE; } #define CRC32(c, b) (crc_32_table[((int)(c) ^ (b)) & 0xff] ^ ((c) >> 8)) /* * Return the next byte in the pseudo-random sequence. */ #define DECRYPT_BYTE_ZIP(keys, t) \ { \ short_u temp = (short_u)keys[2] | 2; \ t = (int)(((unsigned)(temp * (temp ^ 1U)) >> 8) & 0xff); \ } /* * Update the encryption keys with the next byte of plain text. */ #define UPDATE_KEYS_ZIP(keys, c) do { \ keys[0] = CRC32(keys[0], (c)); \ keys[1] += keys[0] & 0xff; \ keys[1] = keys[1] * 134775813L + 1; \ keys[2] = CRC32(keys[2], (int)(keys[1] >> 24)); \ } while (0) /* * Initialize for encryption/decryption. */ int crypt_zip_init( cryptstate_T *state, char_u *key, crypt_arg_T *arg UNUSED) { char_u *p; zip_state_T *zs; zs = ALLOC_ONE(zip_state_T); if (zs == NULL) return FAIL; state->method_state = zs; make_crc_tab(); zs->keys[0] = 305419896L; zs->keys[1] = 591751049L; zs->keys[2] = 878082192L; for (p = key; *p != NUL; ++p) UPDATE_KEYS_ZIP(zs->keys, (int)*p); return OK; } /* * Encrypt "from[len]" into "to[len]". * "from" and "to" can be equal to encrypt in place. */ void crypt_zip_encode( cryptstate_T *state, char_u *from, size_t len, char_u *to, int last UNUSED) { zip_state_T *zs = state->method_state; size_t i; int ztemp, t; for (i = 0; i < len; ++i) { ztemp = from[i]; DECRYPT_BYTE_ZIP(zs->keys, t); UPDATE_KEYS_ZIP(zs->keys, ztemp); to[i] = t ^ ztemp; } } /* * Decrypt "from[len]" into "to[len]". */ void crypt_zip_decode( cryptstate_T *state, char_u *from, size_t len, char_u *to, int last UNUSED) { zip_state_T *zs = state->method_state; size_t i; short_u temp; for (i = 0; i < len; ++i) { temp = (short_u)zs->keys[2] | 2; temp = (int)(((unsigned)(temp * (temp ^ 1U)) >> 8) & 0xff); UPDATE_KEYS_ZIP(zs->keys, to[i] = from[i] ^ temp); } } #endif // FEAT_CRYPT