71 lines
2.9 KiB
Diff
71 lines
2.9 KiB
Diff
Index: tkdiff
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===================================================================
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diff --git a/tkdiff b/tkdiff
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--- a/tkdiff (revision 188)
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+++ b/tkdiff (revision 189)
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@@ -111,7 +111,7 @@
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}
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# Determine the name of the temporary directory, the rc file name,
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-# and possible VPATH EnvVar, all of which are platform dependent.
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+# NULLdev, and possible VPATH EnvVar, all of which are platform dependent.
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#
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# Much MAY likely be overridden by a preference in .tkdiffrc,
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# EXCEPT (obviously) when no such file actually exists yet
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@@ -126,6 +126,9 @@
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set opts(tmpdir) C:/temp
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}
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+ # Reserved filename which is actually a NULL device
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+ set opts(NULLdev) "nul"
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+
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# Split up and store a VPATH if it exists
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if {[info exists ::env(VPATH)]} {
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set finfo(Vpath) [split $::env(VPATH) ";"]
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@@ -145,6 +148,9 @@
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set opts(tmpdir) $::env(TMPDIR)
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} {set opts(tmpdir) /tmp }
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+ # Reserved filename which is actually a NULL device (Unix-like platforms)
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+ set opts(NULLdev) "/dev/null"
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+
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# Split up and store a VPATH if it exists
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if {[info exists ::env(VPATH)]} {
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set finfo(Vpath) [split $::env(VPATH) ":"]
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@@ -2106,7 +2112,7 @@
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# 1 Failed (PLUS a 'pushed' HARD-error message to the caller)
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###############################################################################
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proc get-file {fn ndx {probe 0}} {
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- global g finfo
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+ global g opts finfo
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# Ancestor files are stored into a slightly adjusted array element name
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# N.B> 'ndx' AS PASSED *can* be an EXPRESSION (not just a number): resolve!
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@@ -2121,7 +2127,7 @@
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} elseif {!$tildechk} {
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# DO NOT REPORT non-existence if this attempt was ONLY a probe
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if {$probe} { return 1 } { set MSG "File '$fn' does not exist" }
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- } elseif {[file isfile $fn]} {
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+ } elseif {[file isfile $fn] || $fn == $opts(NULLdev)} {
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set finfo(${A}lbl,$ndx) [shortNm [set finfo(${A}pth,$ndx) "$fn"]]
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} else { set MSG "'$fn' exists, but is not a file" }
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@@ -2857,7 +2863,7 @@
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# Align various label decorations to the CURRENT input file pairing
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###############################################################################
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proc alignDecor {pairnum} {
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- global g w finfo
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+ global g w opts finfo
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# Establish if 3way mode is NOW active and what file indices are in use
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set g(is3way) [info exists finfo(albl,$pairnum)]
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@@ -2874,7 +2880,8 @@
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set finfo(lbl,$LR) $finfo(ulbl,$ndx($n)) ;# Override lbl display
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} else {set finfo(lbl,$LR) $finfo(lbl,$ndx($n))}
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- if {![info exists finfo(tmp,$ndx($n))]} {
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+ if {![info exists finfo(tmp,$ndx($n))] \
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+ && $finfo(pth,$ndx($n)) != $opts(NULLdev)} {
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# (N.B> Tip data will ALSO be used by report generation heading)
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set g(tooltip,${LR}Label) "{$finfo(pth,$ndx($n))\n"
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append g(tooltip,${LR}Label) \
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