Restrict option names to (lower-case) a-z, 0-9 and underscore

r.topmodel: Qobs= -> qobs=
r.watershed: dot -> underscore


git-svn-id: https://svn.osgeo.org/grass/grass/trunk@33575 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.topmodel/main.c

@@ -144,7 +144,7 @@ int main(int argc, char **argv)
     param.output->required = YES;
 
     param.Qobs = G_define_option();
-    param.Qobs->key = "Qobs";
+    param.Qobs->key = "qobs";
     param.Qobs->description = _("(i)   OPTIONAL Observed flow file");
     param.Qobs->type = TYPE_STRING;
     param.Qobs->required = NO;

raster/r.topmodel/r.topmodel.html

@@ -33,7 +33,7 @@ r.mapcalc "belevation = if(basin == 0 || isnull(basin), null(), elevation)"
 r.topidx input=elevation output=topidx
 </pre></div></dd>
 
-<dt><b>Qobs</b></dt>
+<dt><b>qobs</b></dt>
 <dd>Compare simulated flows with observed flows and calculate model
 efficiency.
 </dd>

raster/r.watershed/front/main.c

@@ -72,7 +72,7 @@ int main(int argc, char *argv[])
     opt3->guisection = _("Input_options");
 
     opt4 = G_define_option();
-    opt4->key = "disturbed.land";
+    opt4->key = "disturbed_land";
     opt4->description =
 	_("Input map or value: percent of disturbed land, for USLE");
     opt4->required = NO;
@@ -99,7 +99,7 @@ int main(int argc, char *argv[])
     opt6->guisection = _("Input_options");
 
     opt7 = G_define_option();
-    opt7->key = "max.slope.length";
+    opt7->key = "max_slope_length";
     opt7->description =
 	_("Input value: maximum length of surface flow, for USLE");
     opt7->required = NO;
@@ -142,7 +142,7 @@ int main(int argc, char *argv[])
     opt11->guisection = _("Output_options");
 
     opt12 = G_define_option();
-    opt12->key = "half.basin";
+    opt12->key = "half_basin";
     opt12->description =
 	_("Output map: each half-basin is given a unique value");
     opt12->required = NO;
@@ -160,7 +160,7 @@ int main(int argc, char *argv[])
     opt13->guisection = _("Output_options");
 
     opt14 = G_define_option();
-    opt14->key = "length.slope";
+    opt14->key = "length_slope";
     opt14->description =
 	_("Output map: slope length and steepness (LS) factor for USLE");
     opt14->required = NO;
@@ -169,7 +169,7 @@ int main(int argc, char *argv[])
     opt14->guisection = _("Output_options");
 
     opt15 = G_define_option();
-    opt15->key = "slope.steepness";
+    opt15->key = "slope_steepness";
     opt15->description = _("Output map: slope steepness (S) factor for USLE");
     opt15->required = NO;
     opt15->type = TYPE_STRING;

raster/r.watershed/front/r.watershed.html

@@ -68,7 +68,7 @@ watershed basin model.  Overland flow units represent the amount of
 overland flow each cell contributes to surface flow.  If omitted, a
 value of one (1) is assumed. The algorithm is D8 flow accumulation.
 
-<dt><em>disturbed.land</em> 
+<dt><em>disturbed_land</em> 
 
 <dd>Raster map input layer or value containing the percent of disturbed
 land (i.e., croplands, and construction sites) where the raster or input
@@ -86,11 +86,11 @@ for the RUSLE.  Any non-zero values indicate blocking terrain.
 <dd>The minimum size of an exterior watershed basin in cells, if no flow
 map is input, or overland flow units when a flow map is given.
 Warning: low threshold values will dramactically increase run time and
-generate difficult too read basin and half.basin results.
+generate difficult too read basin and half_basin results.
 This parameter also controls the level of detail in the <em>stream</em>
 segments map.
 
-<dt><em>max.slope.length</em> 
+<dt><em>max_slope_length</em> 
 
 <dd>Input value indicating the maximum length of overland surface flow
 in meters.  If overland flow travels greater than the maximum length,
@@ -134,7 +134,7 @@ in the current geographic region.
 <dd>Output map: stream segments.  Values correspond to the watershed
 basin values.
 
-<dt><em>half.basin</em> 
+<dt><em>half_basin</em> 
 
 <dd>Output map: each half-basin is given a unique value.  Watershed
 basins are divided into left and right sides.  The right-hand side
@@ -151,7 +151,7 @@ modified to provide for easy display.  All negative accumulation values
 are changed to zero.  All positive values above the basin threshold
 are given the value of the <em>threshold</em> parameter.
 
-<dt><em>length.slope</em> 
+<dt><em>length_slope</em> 
 
 <dd>Output map: slope length and steepness (LS) factor.  Contains the LS
 factor for the Revised Universal Soil Loss Equation.  Equations taken
@@ -160,7 +160,7 @@ from <em>Revised Universal Soil Loss Equation for Western Rangelands</em>
 Since the LS factor is a small number, it is multiplied by 100 for the
 GRASS output map.
 
-<dt><em>slope.steepness</em> 
+<dt><em>slope_steepness</em> 
 
 <dd>Output map: slope steepness (S) factor for RUSLE.
 Contains the revised S factor for the Universal Soil
@@ -185,7 +185,7 @@ Kinner et al. (2005), for example, used SRTM and IFSAR DEMs to compare
 valleys while  <em>r.watershed</em> performed much better. Thus, if forest
 canopy exists in valleys, SRTM, IFSAR, and similar data products will cause
 major errors in <em>r.terraflow</em> stream output. Under similar conditions,
-<em>r.watershed</em> will generate better <b>stream</b> and <b>half.basin</b>
+<em>r.watershed</em> will generate better <b>stream</b> and <b>half_basin</b>
 results. If watershed divides contain flat to low slope, <em>r.watershed</em>
 will generate better basin results than <em>r.terraflow</em>.
 (<em>r.terraflow</em> uses the same type of algorithm as ESRI's ArcGIS