250 lines
8.7 KiB
Diff
250 lines
8.7 KiB
Diff
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This patch adds support for newer versions of Poppler and some upstream
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TexLive fixes, including one for CVE-2018-17407.
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It is taken from Linux From Scratch:
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<http://www.linuxfromscratch.org/patches/blfs/svn/texlive-20180414-source-upstream_fixes-3.patch>.
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Submitted By: Ken Moffat <ken at linuxfromscratch dot org>
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Date: 2018-12-26
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Initial Package Version: 20180414
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Upstream Status: Applied
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Origin: Upstream
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Description: Two fixes, cherry-picked from svn plus a CVE fix.
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I have removed the partial fixes for various system versions of poppler.
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r47469 Fix segfault in dvipdfm-x (XeTeX) on 1/2/4-bit transparent indexed PNGs.
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r47477 Fix a ptex regression for discontinuous kinsoku table.
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Also, via fedora (I got lost in svn) a critical fix for CVE-2018-17407
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"A buffer overflow in the handling of Type 1 fonts allows arbitrary code
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execution when a malicious font is loaded by one of the vulnerable tools:
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pdflatex, pdftex, dvips, or luatex."
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diff -Naur a/texk/dvipdfm-x/pngimage.c b/texk/dvipdfm-x/pngimage.c
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--- a/texk/dvipdfm-x/pngimage.c 2018-02-17 08:41:35.000000000 +0000
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+++ b/texk/dvipdfm-x/pngimage.c 2018-10-09 01:52:01.648670875 +0100
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@@ -964,12 +964,16 @@
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png_bytep trans;
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int num_trans;
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png_uint_32 i;
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+ png_byte bpc, mask, shift;
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if (!png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ||
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!png_get_tRNS(png_ptr, info_ptr, &trans, &num_trans, NULL)) {
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WARN("%s: PNG does not have valid tRNS chunk but tRNS is requested.", PNG_DEBUG_STR);
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return NULL;
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}
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+ bpc = png_get_bit_depth(png_ptr, info_ptr);
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+ mask = 0xff >> (8 - bpc);
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+ shift = 8 - bpc;
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smask = pdf_new_stream(STREAM_COMPRESS);
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dict = pdf_stream_dict(smask);
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@@ -981,7 +985,8 @@
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pdf_add_dict(dict, pdf_new_name("ColorSpace"), pdf_new_name("DeviceGray"));
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pdf_add_dict(dict, pdf_new_name("BitsPerComponent"), pdf_new_number(8));
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for (i = 0; i < width*height; i++) {
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- png_byte idx = image_data_ptr[i];
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+ /* data is packed for 1/2/4 bpc formats, msb first */
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+ png_byte idx = (image_data_ptr[bpc * i / 8] >> (shift - bpc * i % 8)) & mask;
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smask_data_ptr[i] = (idx < num_trans) ? trans[idx] : 0xff;
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}
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pdf_add_stream(smask, (char *)smask_data_ptr, width*height);
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diff -Naur a/texk/dvipsk/writet1.c b/texk/dvipsk/writet1.c
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--- a/texk/dvipsk/writet1.c 2016-11-25 18:24:26.000000000 +0000
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+++ b/texk/dvipsk/writet1.c 2018-10-09 01:52:01.648670875 +0100
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@@ -1449,7 +1449,9 @@
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*(strend(t1_buf_array) - 1) = ' ';
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t1_getline();
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+ alloc_array(t1_buf, strlen(t1_line_array) + strlen(t1_buf_array) + 1, T1_BUF_SIZE);
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strcat(t1_buf_array, t1_line_array);
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+ alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE);
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strcpy(t1_line_array, t1_buf_array);
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t1_line_ptr = eol(t1_line_array);
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}
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diff -Naur a/texk/web2c/luatexdir/font/writet1.w b/texk/web2c/luatexdir/font/writet1.w
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--- a/texk/web2c/luatexdir/font/writet1.w 2016-11-25 18:24:34.000000000 +0000
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+++ b/texk/web2c/luatexdir/font/writet1.w 2018-10-09 01:52:01.648670875 +0100
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@@ -1625,7 +1625,9 @@
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if (sscanf(p, "%i", &i) != 1) {
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strcpy(t1_buf_array, t1_line_array);
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t1_getline();
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+ alloc_array(t1_buf, strlen(t1_line_array) + strlen(t1_buf_array) + 1, T1_BUF_SIZE);
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strcat(t1_buf_array, t1_line_array);
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+ alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE);
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strcpy(t1_line_array, t1_buf_array);
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t1_line_ptr = eol(t1_line_array);
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}
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diff -Naur a/texk/web2c/luatexdir/image/pdftoepdf.w b/texk/web2c/luatexdir/image/pdftoepdf.w
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--- a/texk/web2c/luatexdir/image/pdftoepdf.w 2018-01-17 18:00:12.000000000 +0000
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+++ b/texk/web2c/luatexdir/image/pdftoepdf.w 2018-10-09 01:52:01.648670875 +0100
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@@ -472,10 +472,10 @@
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break;
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*/
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case objString:
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- copyString(pdf, obj->getString());
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+ copyString(pdf, (GooString *)obj->getString());
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break;
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case objName:
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- copyName(pdf, obj->getName());
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+ copyName(pdf, (char *)obj->getName());
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break;
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case objNull:
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pdf_add_null(pdf);
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diff -Naur a/texk/web2c/luatexdir/lua/lepdflib.cc b/texk/web2c/luatexdir/lua/lepdflib.cc
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--- a/texk/web2c/luatexdir/lua/lepdflib.cc 2018-02-14 14:44:38.000000000 +0000
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+++ b/texk/web2c/luatexdir/lua/lepdflib.cc 2018-10-09 01:52:01.649670868 +0100
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@@ -674,7 +674,7 @@
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uin = (udstruct *) luaL_checkudata(L, 1, M_##in); \
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if (uin->pd != NULL && uin->pd->pc != uin->pc) \
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pdfdoc_changed_error(L); \
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- gs = ((in *) uin->d)->function(); \
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+ gs = (GooString *)((in *) uin->d)->function(); \
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if (gs != NULL) \
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lua_pushlstring(L, gs->getCString(), gs->getLength()); \
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else \
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@@ -1813,7 +1813,7 @@
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if (uin->pd != NULL && uin->pd->pc != uin->pc)
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pdfdoc_changed_error(L);
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if (((Object *) uin->d)->isString()) {
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- gs = ((Object *) uin->d)->getString();
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+ gs = (GooString *)((Object *) uin->d)->getString();
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lua_pushlstring(L, gs->getCString(), gs->getLength());
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} else
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lua_pushnil(L);
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diff -Naur a/texk/web2c/pdftexdir/writet1.c b/texk/web2c/pdftexdir/writet1.c
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--- a/texk/web2c/pdftexdir/writet1.c 2016-11-25 18:24:37.000000000 +0000
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+++ b/texk/web2c/pdftexdir/writet1.c 2018-10-09 01:52:01.649670868 +0100
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@@ -1598,7 +1598,9 @@
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*(strend(t1_buf_array) - 1) = ' ';
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t1_getline();
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+ alloc_array(t1_buf, strlen(t1_line_array) + strlen(t1_buf_array) + 1, T1_BUF_SIZE);
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strcat(t1_buf_array, t1_line_array);
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+ alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE);
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strcpy(t1_line_array, t1_buf_array);
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t1_line_ptr = eol(t1_line_array);
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}
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diff -Naur a/texk/web2c/ptexdir/ptex_version.h b/texk/web2c/ptexdir/ptex_version.h
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--- a/texk/web2c/ptexdir/ptex_version.h 2018-01-21 03:48:06.000000000 +0000
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+++ b/texk/web2c/ptexdir/ptex_version.h 2018-10-09 01:52:01.649670868 +0100
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@@ -1 +1 @@
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-#define PTEX_VERSION "p3.8.0"
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+#define PTEX_VERSION "p3.8.1"
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diff -Naur a/texk/web2c/ptexdir/tests/free_ixsp.tex b/texk/web2c/ptexdir/tests/free_ixsp.tex
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--- a/texk/web2c/ptexdir/tests/free_ixsp.tex 1970-01-01 01:00:00.000000000 +0100
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+++ b/texk/web2c/ptexdir/tests/free_ixsp.tex 2018-10-09 01:52:01.649670868 +0100
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@@ -0,0 +1,53 @@
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+%#!eptex -ini -etex
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+\let\dump\relax
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+\batchmode
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+\input plain
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+
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+\errorstopmode
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+\catcode`@=11
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+\newcount\@tempcnta
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+\newcount\@tempcntb
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+\newcount\@tempcntc
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+\mathchardef\LIM=256
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+
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+\def\MYCHAR#1{%
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+ \@tempcntc=\numexpr7*#1+"101\relax
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+ \@tempcnta=\@tempcntc\divide\@tempcnta 94
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+ \@tempcntb=\numexpr\@tempcntc-94*\@tempcnta+1\relax
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+ \ifnum\@tempcntb<0\advance\@tempcntb94 \advance\@tempcnta-1\fi
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+ \advance\@tempcnta18 % 18区以降
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+ \CNTA=\kuten\numexpr"100*\@tempcnta+\@tempcntb\relax
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+}
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+
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+\newcount\CNT\newcount\CNTA
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+\CNT=0
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+\loop
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+ \MYCHAR\CNT
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+ \message{\the\CNT.}
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+ \inhibitxspcode\CNTA=1\relax
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+ \advance\CNT1\relax
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+ \ifnum\CNT<\LIM
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+\repeat
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+
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+\newcount\CNTB
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+
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+\loop
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+ \MYCHAR\CNTB
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+ \global\inhibitxspcode\CNTA=3
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+{%
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+\CNT=0
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+\loop
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+ \MYCHAR\CNT
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+ \count@=\numexpr 1-\inhibitxspcode\CNTA\relax
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+ \ifnum\count@=0\else\ifnum\CNTB=\CNT\else
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+ \errmessage{<\the\CNTB, \the\CNT, \the\inhibitxspcode\CNTA>}\fi\fi
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+ \advance\CNT1\relax
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+ \ifnum\CNT<\LIM
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+\repeat
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+}
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+ \MYCHAR\CNTB
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+ \global\inhibitxspcode\CNTA=1\relax
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+ \advance\CNTB1\relax
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+ \ifnum\CNTB<\LIM
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+\repeat
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+\bye
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diff -Naur a/texk/web2c/ptexdir/tests/free_pena.tex b/texk/web2c/ptexdir/tests/free_pena.tex
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--- a/texk/web2c/ptexdir/tests/free_pena.tex 1970-01-01 01:00:00.000000000 +0100
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+++ b/texk/web2c/ptexdir/tests/free_pena.tex 2018-10-09 01:52:01.649670868 +0100
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@@ -0,0 +1,52 @@
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+%#!eptex -ini -etex
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+\let\dump\relax
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+\batchmode
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+\input plain
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+
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+\errorstopmode
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+\catcode`@=11
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+\newcount\@tempcnta
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+\newcount\@tempcntb
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+\newcount\@tempcntc
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+\mathchardef\LIM=256
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+
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+\def\MYCHAR#1{%
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+ \@tempcntc=\numexpr7*#1+"101\relax
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+ \@tempcnta=\@tempcntc\divide\@tempcnta 94
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+ \@tempcntb=\numexpr\@tempcntc-94*\@tempcnta+1\relax
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+ \ifnum\@tempcntb<0\advance\@tempcntb94 \advance\@tempcnta-1\fi
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+ \advance\@tempcnta18 % 18区以降
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+ \CNTA=\kuten\numexpr"100*\@tempcnta+\@tempcntb\relax
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+}
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+
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+\newcount\CNT\newcount\CNTA
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+\CNT=0
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+\loop
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+ \MYCHAR\CNT
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+ \message{\the\CNT.}
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+ \prebreakpenalty\CNTA=\numexpr\CNT+1\relax
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+ \advance\CNT1\relax
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+ \ifnum\CNT<\LIM
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+\repeat
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+
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+\newcount\CNTB
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+
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+\loop
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+ \MYCHAR\CNTB
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+ \global\prebreakpenalty\CNTA=0
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+{%
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+\CNT=0
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+\loop
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+ \MYCHAR\CNT
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+ \count@=\numexpr -\CNT-1+\prebreakpenalty\CNTA\relax
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+ \ifnum\count@=0\else\ifnum\CNTB=\CNT\else\errmessage{<\the\CNTB, \the\CNT>}\fi\fi
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+ \advance\CNT1\relax
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+ \ifnum\CNT<\LIM
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+\repeat
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+}
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+ \MYCHAR\CNTB
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+ \global\prebreakpenalty\CNTA=\numexpr\CNTB+1\relax
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+ \advance\CNTB1\relax
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+ \ifnum\CNTB<\LIM
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+\repeat
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+\bye
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