# $Id: tgrlk.dbfawk,v 1.14 2009/01/02 07:53:58 we7u Exp $
#
# Copyright (C) 2003-2009  The Xastir Group
#
# This dbfawk file is used to map arbitrary dbf data that accompanies
# a shapefile into Xastir canoncical values of:
#   key     - search key
#   lanes   - width of feature (usually a road but applies to rivers, etc. too)
#   color   - color to draw the road
#   name    - name of the road for labels
#   filled  - whether a polygon is drawn filled or not
#   fill_color - color to fill polygon with
#   pattern - line pattern for road, river, etc. (0 - solid; 1 - dash; 2 - double dash)
#   display_level - highest zoom level at which to display the feature
#   label_level - highest zoom level at which to display the label
#   symbol  - 3 char 'TIO': table, ID, overlay
# NOTE: This file format is modeled after awk but is nowhere near awk
#  compatible.
#
# This file is used to map US Census Tiger/Line "lk" shapefiles which are
# named tgrSSCCClk[A-H].dbf, where SSCCC are the FIPS state and county codes.

# BEGIN is called once per dbf file which contains multiple records.
BEGIN {
# dbfinfo is the "signature" of the dbf file listing the column names in order.
# dbfinfo should match the dbf file that we say this dbfawk file goes with.
dbfinfo="oms_id:name:type:width";
# dbffields is which of the above fields we actually want to look at.
# No point reading dbffields that are not looked at further.
dbffields="name:type";
}

# BEGIN_RECORD is called once per dbf record which contains multiple fields.
# Use this rule to re-initialize variables between records.
# use color 11 to highlight stuff that isn't properly mapped.
BEGIN_RECORD {key=""; lanes=1; color=8; fill_color=11; name=""; filled=0; pattern=0; display_level=8192; label_level=32; label_color=8; font_size=0; symbol=""}

# per-field rules are applied to the dbffields that are read from each record.
# key: set the search key to be the Tiger/Line ID.  Not currently used.
#/^name=(.*)$/ {key=$1; next}
# name: concatenate FEDIRP (direction prefix), FENAME (name), 
#   FETYPE (type: Rd, Ln, Pky, etc.) and FEDIRS (direction suffix).
# also abbreviate United States Highway to US, etc.
/^name=(.+)/ {name="$1 "; next}
# lanes=1; color=26; fill_color=26; label_color=26}
/^type=stream/ {lanes=1; display_level=512; color=26; fill_color=26; label_color=26; display_color=26; next}
/^type=river/ {lanes=1; display_level=512; color=26; fill_color=26; label_color=26;next }
/^type=canal/ {lanes=1; display_level=512; color=26; fill_color=26; label_color=26; display_color=26;}

#/^CFCC=H7/ {display_level=0; label_level=0; next}
#/^CFCC=H8/ {lanes=1}
#/^CFCC=H81/ {color=15; fill_color=15; next}
# X00 - feature not yet classified
# just a demo of the END_RECORD and END rules:
#END_RECORD {name="$name ($key)";}
#END {}