fix font info

[lyx.git] / lib / scripts / lyxpreview2ppm.sh

diff --git a/lib/scripts/lyxpreview2ppm.sh b/lib/scripts/lyxpreview2ppm.sh
index 54c090081f4fade1eb15e7b619f822854b79ac57..2720b9bbb6c94f38d8af1cf98f02a4fff4d20621 100644 (file)
--- a/lib/scripts/lyxpreview2ppm.sh
+++ b/lib/scripts/lyxpreview2ppm.sh
@@ -21,52 +21,74 @@ if [ $# -ne 2 ]; then
 fi
 
 # A couple of helper functions
-FIND_EXECUTABLE=""
 FIND_IT () {
-       which ${FIND_EXECUTABLE} > /dev/null
+       which ${EXECUTABLE} > /dev/null
        STATUS=$?
        if [ ${STATUS} -ne 0 ]; then
-               echo "Unable to find \"${FIND_EXECUTABLE}\". Please install."
+               echo "Unable to find \"${EXECUTABLE}\". Please install."
                exit 1
        fi
 }
 
-CHECK_STATUS () {
-       if [ ${STATUS} -ne 0 ]; then
-               echo "${EXECUTABLE} failed."
-               # Remove everything except the original .tex file.
-               FILES=`ls ${BASE}* | sed -e "/${BASE}.tex/d"`
-               rm -f ${FILES}
-               exit ${STATUS}
-       fi
+BAIL_OUT () {
+       # Remove everything except the original .tex file.
+       FILES=`ls ${BASE}* | sed -e "/${BASE}.tex/d"`
+       rm -f ${FILES} texput.log
+       exit 1
 }
 
 # We use latex, dvips and gs, so check that they're all there.
-FIND_EXECUTABLE=latex; FIND_IT
-FIND_EXECUTABLE=dvips; FIND_IT
-FIND_EXECUTABLE=gs;    FIND_IT
+EXECUTABLE=latex; FIND_IT
+EXECUTABLE=dvips; FIND_IT
+EXECUTABLE=gs;    FIND_IT
 
 # Initialise some variables.
-TEXFILE=$1
+TEXFILE=`basename $1`
 RESOLUTION=$2
 
-DIR=`dirname ${TEXFILE}`
-BASE=`basename ${TEXFILE} .tex`
+DIR=`dirname $1`
+BASE=`basename $1 .tex`
 DVIFILE=${BASE}.dvi
 PSFILE=${BASE}.ps
-METRICS=${BASE}.metrics
+METRICSFILE=${BASE}.metrics
 
-# Perform the conversion.
+# LaTeX -> DVI.
 cd ${DIR}
 latex ${TEXFILE}
 STATUS=$?
-EXECUTABLE="latex ${TEXFILE}"; CHECK_STATUS
+if [ ${STATUS} -ne 0 ]; then
+       # LaTeX failed.
+       # preview.sty has known problems with the showlabels option,
+       # so remove it and try again.
+       # This "fix" should be removed once preview-latex 0.73 is released.
+       sed -e '/^\\usepackage/,/{preview}$/s/,showlabels//' \
+               < ${TEXFILE} > .${TEXFILE}
+       cmp -s ${TEXFILE} .${TEXFILE}
+       STATUS=$?
+       if [ ${STATUS} -eq 0 ]; then
+               rm -f .${TEXFILE}
+               echo "Failed: latex ${TEXFILE}"
+               BAIL_OUT
+       fi
 
-dvips -o ${PSFILE} ${DVIFILE}
+       mv -f .${TEXFILE} ${TEXFILE}
+       latex ${TEXFILE}
+       STATUS=$?
+       if [ ${STATUS} -ne 0 ]; then
+               echo "Failed: latex ${TEXFILE}"
+               BAIL_OUT
+       fi
+fi
 
+# DVI -> PostScript
+dvips -o ${PSFILE} ${DVIFILE}
 STATUS=$?
-EXECUTABLE="dvips ${DVIFILE}"; CHECK_STATUS
+if [ ${STATUS} -ne 0 ]; then
+       echo "Failed: dvips -o ${PSFILE} ${DVIFILE}"
+       BAIL_OUT
+fi
 
+# PostScript -> Bitmap files
 # Older versions of gs have problems with a large degree of anti-aliasing
 # at high resolutions
 ALPHA=4
@@ -74,19 +96,22 @@ if [ ${RESOLUTION} -gt 150 ]; then
        ALPHA=2
 fi
 
-gs -q -dNOPAUSE -dBATCH -dSAFER -sDEVICE=pnm -sOutputFile=${BASE}%03d.ppm \
+gs -q -dNOPAUSE -dBATCH -dSAFER -sDEVICE=pnmraw -sOutputFile=${BASE}%03d.ppm \
     -dGraphicsAlphaBit=${ALPHA} -dTextAlphaBits=${ALPHA} -r${RESOLUTION} \
     ${PSFILE}
 
 STATUS=$?
-EXECUTABLE="gs ${PSFILE}"; CHECK_STATUS
+if [ ${STATUS} -ne 0 ]; then
+       echo "Failed: gs ${PSFILE}"
+       BAIL_OUT
+fi
 
-# Attempt to generate a file ${METRICS} that contains only the tightpage
+# Attempt to generate a file ${METRICSFILE} that contains only the tightpage
 # bounding box info, extract from ${PSFILE}
 
 # 1. Create a file containing the sed instructions
-SEDSCRIPT=bbox.sed
-cat - > ${SEDSCRIPT} <<EOF
+SEDFILE=${BASE}.sed
+cat - > ${SEDFILE} <<EOF
 # Delete everything that's enclosed between %%BeginDocument and %%EndDocument
 /^\%\%BeginDocument/,/^\%\%EndDocument/d
 
@@ -109,10 +134,8 @@ d
 EOF
 
 # 2. Run sed!
-sed -f ${SEDSCRIPT} < ${PSFILE} > ${METRICS}
-STATUS=$?
-rm -f ${SEDSCRIPT}
-EXECUTABLE="extracting metrics"; CHECK_STATUS
+sed -f ${SEDFILE} < ${PSFILE} > ${METRICSFILE}
+rm -f ${SEDFILE}
 
 # The ppm files have spurious (?! say some !) white space on the left and right
 # sides. If you want this removed set REMOVE_WS=1.
@@ -139,5 +162,5 @@ fi
 
 # All was successful, so remove everything except the ppm files and the
 # metrics file.
-FILES=`ls ${BASE}* | sed -e "/${BASE}.metrics/d" -e "/${BASE}.*.ppm/d"`
+FILES=`ls ${BASE}* | sed -e "/${BASE}.metrics/d" -e "/${BASE}[0-9]\{3\}.ppm/d"`
 rm -f ${FILES}