SPACER_DATA_CONVERT - Write a data file for SPACER

SPACER_DATA_CONVERT takes a simple file format of object names and distances, and writes out a data file suitable for use with SPACER.

Files you may copy include:

• spacer_data_convert.f90, the source code;
• spacer_data_convert.out, output from a sample run;
• input_data.txt, the input data file;
• spacer_data.txt, the converted ALSCAL data file;

The list of routines includes:

• SPACER_DATA_CONVERT converts a data file to SPACER format.
• C_CAP capitalizes a single character.
• C_EQI is a case insensitive comparison of two characters for equality.
• C_TO_DIGIT returns the integer value of a base 10 digit.
• GET_UNIT returns a free FORTRAN unit number.
• I_EXTRACT "extracts" an integer from the beginning of a string.
• INPUT_PRINT prints the input data.
• INPUT_READ reads the distance data from a file.
• OUTPUT_WRITE writes the distance data to a file in SPACER format.
• R_EXTRACT "extracts" a real from the beginning of a string.
• S_SHIFT_LEFT shifts the characters in a string to the left and blank pads.
• S_TO_I reads an integer value from a string.
• S_TO_R reads a real number from a string.
• WORD_EXTRACT extracts the next word from a string.

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