added !tempfile and !delfile

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@4307 212acab6-be3b-0410-9dea-997c60f758d6

Docs/src/compiler.but

@@ -41,6 +41,16 @@ This command will change the compiler to the new directory, new_path. new_path c
 
 \c !cd ..\more-scripts\new
 
+\S1{delfile} !delfile
+
+\c file
+
+This command deletes a file.
+
+\c !tempfile FILE
+\c !delfile "${FILE}"
+\c !undef FILE
+
 \S1{echo} !echo
 
 \c message
@@ -90,6 +100,23 @@ This command will execute 'command' using a call to system(), and if the return
 \c   !echo "something is defined"
 \c !endif
 
+\S1{tempfile} !tempfile
+
+\c symbol
+
+This command creates a temporary file. It puts its path into a define, named \e{symbol}.
+
+\c !tempfile PACKHDRTEMP
+\c !packhdr "${PACKHDRTEMP}" '"C:\Program Files\UPX\upx.exe" "${PACKHDRTEMP}"'
+
+\c !tempfile FILE
+\c !define /date DATE "%H:%M:%S %d %b, %Y"
+\c !system 'echo built on ${DATE} > "${FILE}"'
+\c File /oname=build.txt "${FILE}"
+\c !delfile "${FILE}"
+\c !undef FILE
+\c !undef DATE
+
 \S1{warning} !warning
 
 \c [message]