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Annotation of embedaddon/sqlite3/tool/mksqlite3internalh.tcl, revision 1.1.1.1

1.1       misho       1: #!/usr/bin/tclsh
                      2: #
                      3: # To build a single huge source file holding all of SQLite (or at
                      4: # least the core components - the test harness, shell, and TCL 
                      5: # interface are omitted.) first do
                      6: #
                      7: #      make target_source
                      8: #
                      9: # The make target above moves all of the source code files into
                     10: # a subdirectory named "tsrc".  (This script expects to find the files
                     11: # there and will not work if they are not found.)  There are a few
                     12: # generated C code files that are also added to the tsrc directory.
                     13: # For example, the "parse.c" and "parse.h" files to implement the
                     14: # the parser are derived from "parse.y" using lemon.  And the 
                     15: # "keywordhash.h" files is generated by a program named "mkkeywordhash".
                     16: #
                     17: # After the "tsrc" directory has been created and populated, run
                     18: # this script:
                     19: #
                     20: #      tclsh mksqlite3c.tcl
                     21: #
                     22: # The amalgamated SQLite code will be written into sqlite3.c
                     23: #
                     24: 
                     25: # Begin by reading the "sqlite3.h" header file.  Count the number of lines
                     26: # in this file and extract the version number.  That information will be
                     27: # needed in order to generate the header of the amalgamation.
                     28: #
                     29: set in [open tsrc/sqlite3.h]
                     30: set cnt 0
                     31: set VERSION ?????
                     32: while {![eof $in]} {
                     33:   set line [gets $in]
                     34:   if {$line=="" && [eof $in]} break
                     35:   incr cnt
                     36:   regexp {#define\s+SQLITE_VERSION\s+"(.*)"} $line all VERSION
                     37: }
                     38: close $in
                     39: 
                     40: # Open the output file and write a header comment at the beginning
                     41: # of the file.
                     42: #
                     43: set out [open sqlite3internal.h w]
                     44: set today [clock format [clock seconds] -format "%Y-%m-%d %H:%M:%S UTC" -gmt 1]
                     45: puts $out [subst \
                     46: {/******************************************************************************
                     47: ** This file is an amalgamation of many private header files from SQLite
                     48: ** version $VERSION. 
                     49: */}]
                     50: 
                     51: # These are the header files used by SQLite.  The first time any of these 
                     52: # files are seen in a #include statement in the C code, include the complete
                     53: # text of the file in-line.  The file only needs to be included once.
                     54: #
                     55: foreach hdr {
                     56:    btree.h
                     57:    btreeInt.h
                     58:    hash.h
                     59:    hwtime.h
                     60:    keywordhash.h
                     61:    opcodes.h
                     62:    os_common.h
                     63:    os.h
                     64:    os_os2.h
                     65:    pager.h
                     66:    parse.h
                     67:    sqlite3ext.h
                     68:    sqlite3.h
                     69:    sqliteInt.h
                     70:    sqliteLimit.h
                     71:    vdbe.h
                     72:    vdbeInt.h
                     73: } {
                     74:   set available_hdr($hdr) 1
                     75: }
                     76: 
                     77: # 78 stars used for comment formatting.
                     78: set s78 \
                     79: {*****************************************************************************}
                     80: 
                     81: # Insert a comment into the code
                     82: #
                     83: proc section_comment {text} {
                     84:   global out s78
                     85:   set n [string length $text]
                     86:   set nstar [expr {60 - $n}]
                     87:   set stars [string range $s78 0 $nstar]
                     88:   puts $out "/************** $text $stars/"
                     89: }
                     90: 
                     91: # Read the source file named $filename and write it into the
                     92: # sqlite3.c output file.  If any #include statements are seen,
                     93: # process them approprately.
                     94: #
                     95: proc copy_file {filename} {
                     96:   global seen_hdr available_hdr out
                     97:   set tail [file tail $filename]
                     98:   section_comment "Begin file $tail"
                     99:   set in [open $filename r]
                    100:   while {![eof $in]} {
                    101:     set line [gets $in]
                    102:     if {[regexp {^#\s*include\s+["<]([^">]+)[">]} $line all hdr]} {
                    103:       if {[info exists available_hdr($hdr)]} {
                    104:         if {$available_hdr($hdr)} {
                    105:           section_comment "Include $hdr in the middle of $tail"
                    106:           copy_file tsrc/$hdr
                    107:           section_comment "Continuing where we left off in $tail"
                    108:         }
                    109:       } elseif {![info exists seen_hdr($hdr)]} {
                    110:         set seen_hdr($hdr) 1
                    111:         puts $out $line
                    112:       }
                    113:     } elseif {[regexp {^#ifdef __cplusplus} $line]} {
                    114:       puts $out "#if 0"
                    115:     } elseif {[regexp {^#line} $line]} {
                    116:       # Skip #line directives.
                    117:     } else {
                    118:       puts $out $line
                    119:     }
                    120:   }
                    121:   close $in
                    122:   section_comment "End of $tail"
                    123: }
                    124: 
                    125: 
                    126: # Process the source files.  Process files containing commonly
                    127: # used subroutines first in order to help the compiler find
                    128: # inlining opportunities.
                    129: #
                    130: foreach file {
                    131:    sqliteInt.h
                    132:    sqlite3.h
                    133:    btree.h
                    134:    hash.h
                    135:    os.h
                    136:    pager.h
                    137:    parse.h
                    138:    sqlite3ext.h
                    139:    vdbe.h
                    140: } {
                    141:   if {$available_hdr($file)} {
                    142:     copy_file tsrc/$file
                    143:   }
                    144: }
                    145: 
                    146: close $out